A Russian prefix is a small, reusable meaning-unit that bolts onto the front of a root and almost always carries the same core sense wherever it appears. The practical payoff is enormous: once you know that пере- means "across / re- / over," you can decode перечита́ть ("re-read"), перейти́ ("cross over"), and переборщи́ть ("overdo it") without ever having learned them as separate words. This page is a reference table of the fifteen highest-value prefixes and their meanings, followed by a decoding strategy you can apply to any unfamiliar prefixed word. For how prefixes interact with verb aspect and the full Aktionsart picture, see verb prefixes and their meanings.
How to read this table
Each prefix usually has one spatial core meaning (its oldest layer) and one or two figurative or aspectual extensions that grew out of it. Think of the spatial sense as the anchor: разби́ть literally pulls a thing apart (раз- "apart") into pieces; the abstract разлюби́ть ("fall out of love") is the same "un-doing / reversing" idea applied to a feeling. English speakers already do this with phrasal particles — break up, break down, break out — so the mental move is familiar; the difference is that Russian fuses the particle to the front rather than tacking it on behind.
The reference table
| Prefix | Core meaning(s) | Example | Gloss |
|---|---|---|---|
| в- (во-) | in / into | войти́ | to go in, enter |
| вы- | out / out of | вы́йти | to go out, exit |
| при- | toward / arrival; a little, slightly | прийти́ · приоткры́ть | to arrive · to open slightly |
| у- | away (departure); thoroughly, completely | уйти́ · уби́ть | to leave · to kill (do in completely) |
| под- (подо-) | under; up to (approach); a little, secretly | подписа́ть · подойти́ | to sign (write under) · to approach |
| от- (ото-) | away from; back (response/undoing) | отойти́ · отда́ть | to step away · to give back |
| пере- | across / over; re- (do again); too much | перейти́ · перечита́ть | to cross · to re-read |
| про- | through / past; all the way (duration) | пройти́ · проспа́ть | to pass through · to sleep through |
| за- | behind / drop in; begin to; overdo | зайти́ · запе́ть | to drop by · to burst into song |
| до- | up to (reach a limit); finish doing | дойти́ · дочита́ть | to reach · to finish reading |
| раз- (рас-) | apart / in pieces; un- (reverse) | разби́ть · разлюби́ть | to smash apart · to fall out of love |
| с- (со-) | together; off / down (from a surface) | сойти́сь · спусти́ться | to converge · to come down |
| о- (об-, обо-) | around / all over; about, concerning | обойти́ · описа́ть | to go around · to describe |
| недо- | insufficiently / not enough | недоспа́ть | to undersleep, not sleep enough |
| пре- | very, extremely (intensifier); across (Church-Slavonic) | преогро́мный · преврати́ть | huge (very-huge) · to transform |
The two trickiest pairs: при-/пре- and недо-/до-
Two contrasts trip up nearly every learner, so they deserve a closer look.
при- vs пре- sound almost identical in unstressed speech but mean different things, and the choice is governed by a spelling rule (covered in full on the при-/пре- prefix spelling). In brief: при- means "approach / attach / a little" (прийти́ "arrive," приши́ть "sew on," приоткры́ть "open slightly"), while пре- means "very" or "across/through" (преми́лый "very sweet," преступи́ть "to transgress," literally "step across"). When in doubt, ask whether the word is about getting near / a small amount (при-) or an extreme degree / crossing a line (пре-).
Приоткро́й окно́ немно́го — ду́шно.
Open the window a little — it's stuffy. (при- here = 'slightly', not full opening)
Э́то преинтере́сная кни́га, прочти́ обяза́тельно.
This is a most interesting book, you absolutely must read it. (пре- = 'very')
недо- vs до- look like opposites and are. до- means "carry the action through to its end / reach the limit" (доеда́ть "finish eating up"), whereas недо- is its negation: "fail to reach the needed amount, do insufficiently" (недоеда́ть "to be undernourished, not eat enough"). The pair доспа́ть / недоспа́ть captures it perfectly.
Я опя́ть недоспа́л и весь день хожу́ как зо́мби.
I didn't get enough sleep again and I'm walking around like a zombie all day. (недо- = 'not enough')
Доде́лай отчёт до обе́да, пожа́луйста.
Finish the report before lunch, please. (до- = 'bring to completion')
Decoding strategy: prefix + root = meaning
The reference table earns its keep when you hit a word you have never seen. Split off the prefix, recognise the root, and add the meanings. Take the root -чит-/-чест- ("read / count"):
| Word | Prefix + root | Decoded meaning |
|---|---|---|
| перечита́ть | пере- (re-) + -чит- | to re-read |
| дочита́ть | до- (finish) + -чит- | to read to the end |
| прочита́ть | про- (all the way) + -чит- | to read through (perfective) |
| вы́читать | вы- (out) + -чит- | to deduct / proofread out |
| зачита́ться | за- (begin/get absorbed) + -чит- | to get lost in reading |
One root, five prefixes, five predictable meanings. The same trick runs on -би- ("beat/break"): разби́ть ("smash apart"), уби́ть ("kill = beat completely"), приби́ть ("nail on = beat toward"), переби́ть ("interrupt = beat across").
Не перебива́й меня́, дай договори́ть.
Don't interrupt me, let me finish. (пере- 'across' + -би- 'beat' → 'cut across someone's speech')
Ребёнок разби́л ча́шку, оско́лки повсю́ду.
The child smashed a cup, there are shards everywhere. (раз- 'apart' + -би- 'beat' → 'break into pieces')
Common Mistakes
❌ Reading пре- and при- as interchangeable: writing *прекрасти́ть for 'to stop'.
Wrong — the verb is прекрати́ть (пре- 'across/through' + -крат-); при- would change the meaning. The choice is a real spelling-and-meaning rule.
✅ прекрати́ть рабо́ту (to stop work) vs. прикрепи́ть значо́к (to attach a badge).
пре- 'extreme/across' vs. при- 'attach/toward' — different prefixes, different meanings.
❌ Treating недо- as just 'до- plus не', e.g. *не доспа́ть as two words for 'undersleep'.
Wrong — недо- is a single fused prefix meaning 'insufficiently'; it is written solid: недоспа́ть, недоеда́ть.
✅ Он постоя́нно недосыпа́ет из-за рабо́ты.
He's constantly sleep-deprived because of work. — недо- as one prefix, written joined.
❌ Expecting раз- to keep its з everywhere: *разписа́ть.
Wrong — before a voiceless consonant раз- becomes рас-: расписа́ть. Same prefix, sound-driven spelling.
✅ расписа́ться в журна́ле (to sign in the register).
рас- before voiceless с — the assimilated spelling of раз-.
❌ Assuming у- always means 'away', so reading уби́ть as 'beat away'.
Wrong — у- also means 'thoroughly/completely'; уби́ть is 'to kill' (beat someone completely), not 'beat away'.
✅ уви́деть (to catch sight of), услы́шать (to catch by ear) — у- as 'achieve the result completely'.
The 'completion' sense of у- is just as common as the spatial 'away' sense.
Key Takeaways
- A Russian prefix carries a stable core meaning across words — learn it once and reuse it everywhere.
- Most prefixes have a spatial anchor sense plus figurative/aspectual extensions: пере- "across" → "re-" → "overdo"; раз- "apart" → "un-".
- Watch the lookalike pairs: при- (toward/attach/slightly) vs пре- (very/across), and до- (finish/reach) vs недо- (insufficiently).
- Prefixes change spelling to match the next sound (раз-/рас-, с-/со-) without changing meaning.
- To decode an unknown word, split off the prefix, recognise the root, add the meanings: пере- + -чит- = "re-read"; недо- + -спа- = "undersleep"; раз- + -би- = "smash apart."
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Start learning Russian→Related Topics
- Verb Prefixes and Their MeaningsB1 — A catalogue of the common Russian verbal prefixes and what they mean — spatial ones (в- in, вы- out, под- up to, от- away, пере- across/re-, про- through, за- behind/begin, при- toward, у- away, до- up to, раз- apart, с- together/off) and Aktionsart ones that tweak how an action unfolds (за- start, по- a bit/awhile, пере- redo/overdo, недо- not enough, до- finish). One root (писа́ть) runs through them all, and a Russian prefix works much like an English phrasal-verb particle (write → write down, write out, rewrite).
- How Russian Builds WordsB1 — Russian word formation (словообразова́ние) is famously systematic: a word is built from a prefix + root + suffix + ending (на-пис-а́-ть), so the root carries the core meaning and the affixes modify it predictably. One root spins out a whole family (учи́ть, учи́тель, учени́к, уче́бник, нау́ка), and the two main engines are prefixation (mostly on verbs) and suffixation (mostly on nouns and adjectives). Learn the parts and vocabulary turns from memorization into pattern-recognition.
- Recognizing Roots: Decoding Unknown WordsB2 — The single highest-leverage reading skill in Russian: strip the prefix and suffixes off an unfamiliar word to expose its root, then read the meaning off the root plus the affixes. пере-пи́с-ыва-ни-е decodes as пере- 're-' + -пис- 'write' + -ыва- (process) + -ние (noun) = 'rewriting'. The catch is that roots shift their vowels and consonants across a family (-ход-/-хож- 'go', -бер-/-бир-/-бор- 'take'), so you must learn to recognize a root through its disguises. This page teaches the strip-down procedure, the main root families, the vowel alternations, and walks through a full worked decode.
- The Prefixes Пре- vs При-B2 — Whether you write пре- or при- is decided by meaning, not sound: при- signals approach, attachment, incompleteness, or proximity (прийти́, приши́ть, приоткры́ть, примо́рский), while пре- signals a high degree ('very') or stands in for пере- ('across/re-') (прекра́сный, преврати́ть, преступле́ние) — a distinction that creates dangerous minimal pairs like придать 'to add' vs предать 'to betray'.
- Why This Prefix? Choosing the Perfective PartnerB2 — Which prefix perfectivizes a given imperfective is a lexical property you must learn WITH the verb, like gender (писа́ть→на-, чита́ть→про-, де́лать→с-). But many prefixes do more than perfectivize — they add a 'way of action' (спо́соб де́йствия): ЗА- begins, ПО- does a bit, ПРО- does throughout (or misses), ДО- finishes, ПЕРЕ- redoes, НА-...-СЯ does to satiety, РАЗ-...-СЯ gets going, ВЗ- does suddenly. Picking the wrong prefix often makes a DIFFERENT verb (переписа́ть 'rewrite' ≠ написа́ть 'write').