Prefixes: אי־, בין־, תת־, על־, רב־, דו־ | Hebrew Grammar

Hebrew has a compact set of bound prefixes that does much of the work English assigns to non-, inter-, sub-, super-, multi- and bi-. They cannot normally stand alone with these meanings: בין־ in בין־לאומי is not the free preposition בין “between,” and דו־ is not an independent word meaning “two.” The prefix and its base form one lexical unit, even when a maqaf remains visible between them.

The working inventory

The Academy recommends a Hebrew maqaf ־ after these prefixes. Careful edited writing therefore gives the forms below; solid spellings such as בינלאומי and casual spellings without the mark are also widespread. The typography and Unicode behaviour of the character belong on the maqaf page.

Prefix	Core meaning	Established examples
אִי־	absence, non-, failure to	אִי־הֲבָנָה misunderstanding · אִי־שִׁוְויוֹן inequality · אִי־וַדָּאוּת uncertainty
בֵּין־	between, inter-	בֵּין־לְאוּמִּי international · בֵּין־אִישִׁי interpersonal · בֵּין־עִירוֹנִי intercity
תַּת־	under, sub-	תַּת־מוּדָע subconscious · תַּת־קַרְקָעִי underground · תַּת־וַעֲדָה subcommittee
עַל־	above, super-, ultra-	עַל־טִבְעִי supernatural · עַל־קוֹלִי supersonic · עַל־יְסוֹדִי secondary, post-primary
רַב־	many, multi-	רַב־תַּכְלִיתִי multipurpose · רַב־קוֹמוֹת high-rise · רַב־מֶכֶר bestseller
דּוּ־	two, bi-	דּוּ־שִׂיחַ dialogue · דּוּ־לְשׁוֹנִי bilingual · דּוּ־קִיּוּם coexistence
חַד־	one, single-, uni-	חַד־פַּעֲמִי one-off · חַד־צְדָדִי unilateral · חַד־סִטְרִי one-way
בִּלְתִּי־	un-, in-, not capable of	בִּלְתִּי־אֶפְשָׁרִי impossible · בִּלְתִּי־נִמְנָע inevitable · בִּלְתִּי־תָּלוּי independent
אַנְטִי־	anti-, opposed to	אַנְטִי־וִירוּס antivirus · אַנְטִי־דֵּמוֹקְרָטִי antidemocratic · אַנְטִי־חֶבְרָתִי antisocial
פְּרוֹ־	pro-, in favour of	פְּרוֹ־יִשְׂרְאֵלִי pro-Israeli · פְּרוֹ־מַעֲרָבִי pro-Western · פְּרוֹ־דֵּמוֹקְרָטִי prodemocratic

These are productive families, not permission to translate any English prefixed word piece by piece. Hebrew usually has an established whole word, and its prefix, base and pronunciation have to be learned together.

הרכבת הבין־עירונית האחרונה יוצאת בעוד עשר דקות.

harakévet habein-ironít ha'akharoná yotsét be'ód éser dakót

The last intercity train leaves in ten minutes.

הבניין החדש כולל חניון תת־קרקעי בשלוש קומות.

habinyán hekhadásh kolél khenyón tat-karka'í bishlósh komót

The new building includes a three-level underground car park.

קניתי מעיל דו־צדדי שאפשר ללבוש בשני הצבעים.

kaníti me'íl du-tsdadí she'efshár lilbósh bishnéi hatseva'ím

I bought a reversible jacket that can be worn in either colour.

Three kinds of “not”

English non-, un- and plain not overlap heavily. Hebrew makes a grammatical distinction according to what is being negated:

Form	What follows	What it creates
אִי־	a noun, especially an action noun	a new noun: אִי־הַסְכָּמָה “non-agreement, failure to agree”
בִּלְתִּי־	an adjective or participial base	a negative adjective: בִּלְתִּי־מוּסְכָּם “not agreed upon”
לֹא	a predicate or clause	ordinary syntactic negation: לֹא מַסְכִּימִים “do not agree”

אי־הסכמה על התקציב עיכבה את פתיחת המרכז.

i-haskamá al hataktsív ikvá et ptikhát hamerkáz

Disagreement over the budget delayed the centre's opening. (neutral/formal)

הסעיף הזה עדיין בלתי־מוסכם, ולכן לא חותמים היום.

hasa'íf hazé adáyin bilti-muskám, velakhén lo khotmím hayóm

This clause is still not agreed upon, so we are not signing today. (formal/professional)

אנחנו לא מסכימים על המחיר, אבל השיחה נעימה.

anákhnu lo maskimím al hamekhír, avál hasikhá ne'imá

We don't agree on the price, but the conversation is pleasant.

The distinctions are morphological, not merely stylistic. אי־ cannot negate a finite verb. בלתי־ is especially common in official, legal and academic compounds, though established items such as בלתי־אפשרי are neutral. Plain לא is the everyday clause negator; its full syntax is on לא.

💡

Ask what category you need at the end. A thing or event takes אי־ + noun; a property takes בלתי־ + adjective; a claim about what someone does or is takes free לא.

The article belongs at the front

A prefixed form is one unit for definiteness. Put ה־ before the prefix, not between the prefix and its base: הבין־לאומי, התת־קרקעי, הדו־לשוני. The same front position takes the inseparable prepositions: בכנס הבין־לאומי “at the international conference.”

הכנס הבין־לאומי ייפתח מחר בבוקר.

hakénes habein-le'umí yipatákh makhár babóker

The international conference will open tomorrow morning.

התוכנית הרב־שנתית אושרה אחרי דיון ארוך.

hatokhnít harav-shnatít ushrá akharéi diyún arókh

The multi-year plan was approved after a long discussion. (formal/professional)

Plural marking is lexical

The bound prefix usually stays fixed, while an adjectival ending agrees: singular בין־לאומי has plural בין־לאומיים, singular דו־לשוני has plural דו־לשוניים, and singular תת־קרקעי has plural תת־קרקעיים. A prefixed noun instead pluralises its noun base, so singular תת־ועדה has plural תת־ועדות. But רב־קומות is a construct-like adjective whose fixed singular form already contains the plural קומות; with a plural head, its first member becomes construct plural רבי־קומות.

Singular phrase	Plural phrase
אִרְגּוּן בֵּין־לְאוּמִּי	אִרְגּוּנִים בֵּין־לְאוּמִּיִּים
בֵּית סֵפֶר דּוּ־לְשׁוֹנִי	בָּתֵּי סֵפֶר דּוּ־לְשׁוֹנִיִּים
תַּת־וַעֲדָה	תַּת־וַעֲדוֹת
בִּנְיָין רַב־קוֹמוֹת	בִּנְיָינִים רַבֵּי־קוֹמוֹת

There is no shortcut that replaces learning the whole expression. The ordinary agreement of the ־י adjective is covered on the ־י suffix; exceptional compounds must be checked individually.

שתי תת־ועדות הגישו מסקנות שונות.

shtei tat-va'adót higíshu maskanót shonót

Two subcommittees submitted different conclusions. (formal)

במרכז העיר נבנו שלושה בניינים רבי־קומות.

bemerkáz ha'ír nivnú shloshá binyaním rabei-komót

Three high-rise buildings were built in the city centre.

💡

The prefix is normally the stable part; look to the grammatical head for number and gender. That predicts בין־לאומיים and תת־ועדות, but not the stored construct-like רבי־קומות. Lexical exceptions are a real part of this system.

Common Mistakes

1. Using אי־ before a finite verb. It creates nouns, not negative clauses.

❌ הם אי־מסכימים על התאריך

Incorrect — אי־ cannot negate the finite/participial predicate מסכימים. Say הם לא מסכימים, or use the noun אי־הסכמה.

✅ הם לא מסכימים על התאריך ולכן דחו את הפגישה.

hem lo maskimím al hata'aríkh velakhén dakhú et hapgishá

They don't agree on the date, so they postponed the meeting.

2. Putting the article inside the compound. The whole unit takes the article at its left edge.

❌ הכנס בין־הלאומי מתחיל מחר

Incorrect — the article precedes the whole adjective: הכנס הבין־לאומי.

✅ המשלחת הבין־לאומית נחתה לפנות בוקר.

hamishlakhát habein-le'umít nakhatá lifnót bóker

The international delegation landed before dawn.

3. Leaving an agreeing adjective in the singular. The prefix does not block agreement on the adjectival ending.

❌ אלה תוכניות רב־שנתי

Incorrect — תוכניות is feminine plural, so the adjective is רב־שנתיות.

✅ העירייה הציגה שתי תוכניות רב־שנתיות חדשות.

ha'iriyá hitsigá shtei tokhniyót rav-shnatiyót khadashót

The municipality presented two new multi-year plans. (formal)

Key Takeaways

Bound prefixes create one lexical unit: the article goes at the front, and careful writing places a Hebrew maqaf after the prefix.
אי־ + noun, בלתי־ + adjective, and free לא + predicate are three different grammatical structures.
Agreement belongs to the head or adjectival ending, not to the prefix; fixed formations such as רבי־קומות still have to be learned whole.
Modern writing varies between maqaf and fused spelling. That register variation does not change the underlying grammar.

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