Többes szám

The plural marker is -k. If the word ends in a vowel, just add it — but a final a becomes á and a final e becomes é first: alma → almák, kutya → kutyák, autó → autók.

If the word ends in a consonant, you need a linking vowel before the -k, and it harmonises: back words take -ok (asztal → asztalok, ablak → ablakok), front unrounded take -ek (ember → emberek, könyv → könyvek), front rounded take -ök (gyümölcs → gyümölcsök).

A small set of very common words take -ak / -ek instead — ház → házak, nap → napok is regular but hét → hetek, kéz → kezek shorten the stem vowel. These are worth memorising as you meet them; there is no rule that predicts them.

After a number or a quantity word, the noun stays singular. két alma, not két almák. sok könyv, három kutya, öt ember. The number already tells you there is more than one, so Hungarian does not mark it twice. This is the opposite of English and German, and it is the mistake learners make most.