The Second Locative (в лесу, на берегу)

If you have learned that the prepositional singular of masculine nouns is -е (в столе́, в до́ме), you have learned the rule that covers 95% of cases — and you have also learned the rule that will make you say the wrong thing for some of the most ordinary words in the language. A closed set of roughly a hundred masculine nouns takes a special, always-stressed -у́ / -ю́ after в and на when those prepositions mean physical location ("in / on"). This is the second locative (also called the locative-2 or, in Russian school terms, the ме́стный паде́ж, méstny padézh, "the locative case"). It is not a seventh case you have to learn from scratch — it is a small subset of the prepositional that hijacks the ending of about a hundred words. The trouble is that those hundred words include в лесу́ (in the forest), на берегу́ (on the bank), в саду́ (in the garden), на полу́ (on the floor), and the unavoidable в э́том году́ (this year). Skip this page and you will be saying в лесе, на бе́реге, *в этом годе for the rest of your Russian life — and every native speaker will hear it.

The core fact: stressed -у́ after в/на for location

For the locative-2 nouns, the prepositional ending after в ("in") or на ("on") is -у́ (hard stems) or -ю́ (soft stems), and it is always stressed — the stress jumps onto the ending. Compare the regular pattern (-е, often unstressed) with the locative-2:

Why English speakers never see this coming

English marks "in the forest" and "about the forest" with the same noun form — the preposition does all the work, and forest never changes. Russian already surprises you by changing the ending to -е after a preposition; the second locative adds a second twist that no Romance or Germanic language prepares you for: the very same noun has two different prepositional endings depending on what the preposition means. "In the forest" (location) is в лесу́, but "about the forest" (topic) is о ле́се. There is no logic you can derive from English here — it is a frozen relic of an older Slavic case system that, over centuries, collapsed two distinct cases (a locative and a prepositional) into one for most nouns but left these hundred-odd masculine words carrying the old stressed ending. You simply have to know which words are in the club.

The decisive contrast: location vs. topic

Here is the rule that locks the whole thing in. The second locative appears only with в/на in a locational sense. The moment the noun is the topic of speech or thought — that is, after о/об ("about") — it reverts to the perfectly regular -е. Same with the genitive, dative, and so on elsewhere in the sentence. The locative-2 is triggered by в/на + place, nothing else.

The high-frequency members you must know

You do not need to memorize all hundred. Most of them are uncommon. But a few dozen are so frequent that getting them wrong marks you instantly as a learner. Group them and overlearn them:

Honest difficulty: variation and meaning-shifts

This is one of those corners of Russian where you have to accept some genuine messiness. Three honest warnings:

1. Some nouns allow both forms, with a meaning difference. The classic pair is ряд: в ря́де слу́чаев ("in a number of cases", abstract) vs. в ряду́ ("in the row", physical line). Likewise в кру́ге (in a circle, geometry) vs. в кругу́ (in the circle/midst of, e.g. в кругу́ друзе́й "among friends"). The locative-2 tends to carry the concrete, spatial meaning; the regular -е carries the abstract one.

2. Some nouns are drifting. For a few words the locative-2 is optional and slightly old-fashioned, with the regular -е gaining ground (e.g. в отпуске / в отпуску́ — the -е form is now standard, the -у́ is colloquial/dated). When in doubt with a less common noun, the regular -е is the safer bet; you will only sound bookish, never wrong.

3. There is no derivable rule for membership. You cannot predict from a noun's shape whether it is a locative-2 word. Лес is, but го́род ("city") is not (в го́роде, regular). You memorize the list. There is genuinely no shortcut here — but the good news is the list is closed and the frequent members are few.

Common Mistakes

Key Takeaways

• The second locative (locative-2) is a closed set of ~100 mostly masculine nouns that take a stressed -у́ / -ю́ after в / на meaning physical location, instead of the regular -е.
• It is not a new case — it is a special subset of the prepositional. The endings tables call the rest of the prepositional -е; these words are the exceptions.
• It appears only with в/на for location. After о ("about"), or anywhere else, the noun reverts to the regular -е: в лесу́ but о ле́се, в году́ but о го́де.
• Overlearn the frequent members: в лесу́, на берегу́, в саду́, на полу́, в углу́, в шкафу́, на мосту́, в порту́, в аэропорту́ — and above all в э́том году́ / в про́шлом году́.
• Membership is not predictable and a few nouns vary or shift meaning (в ря́де vs в ряду́, в кру́ге vs в кругу́). Memorize the list; with rare words the regular -е is the safe default.