Meaning of -ES in English

~ 1

■ suffix

1》 forming plurals of nouns ending in sibilant sounds: kisses.

2》 forming plurals of certain nouns ending in -o : potatoes.


var. of -s 1 .


~ 2

■ suffix forming the third person singular of the present tense:

1》 in verbs ending in sibilant sounds: pushes.

2》 in verbs ending in -o (but not -oo ): goes.


var. of -s 2 .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.