English

больной

“больной” (bolnoy) — a sick person, patient in Russian. Noun, level A1. The adjective turned noun: the sick one. Bolnoy ochen slab — "the patient is very weak". In a live sentence: “Больной очень слаб” — The patient is very weak. Written with the characters б, о, л, ь, н, о, й. A word from the everyday Russian course, level A1.

Updated September 1, 2026 · Lingofly

In short

“a sick person, patient” in Russian
Written in Russianбольной
Read in Latin lettersbolnoy
Translationa sick person, patient
Part of speechnoun
LevelA1

Why it looks that way

The adjective turned noun: the sick one. Bolnoy ochen slab — "the patient is very weak".

A word with a story stays in memory longer than one learned as a “spelling — translation” pair: memory holds on to meaning, not to a string.

In a live sentence

A single word almost never appears alone in conversation. A sentence shows where it fits and what stands next to it.

  • Больной очень слаб
    Bolnoy ochen slab
    The patient is very weak

How not to forget this word

Reading a word and remembering it are different jobs. A day later, little survives of a single reading — and that is not bad memory, that is how memory works.

Frequently asked

How do you say “a sick person, patient” in Russian?

«больной», read “bolnoy”. In a live sentence: “Больной очень слаб” — The patient is very weak. Noun, level A1; written with the characters б, о, л, ь, н, о, й.

How is “больной” written in Latin letters?

bolnoy. This is a practical spelling — you need it to read aloud and be understood, not to meet an academic standard.

Why does this word look the way it does?

The adjective turned noun: the sick one. Bolnoy ochen slab — "the patient is very weak". A word with a story stays in memory longer than a “spelling — translation” pair: memory holds on to meaning, not to a string.

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