What is the meaning of ем?

food, feed for birds or fish

first-person singular present indicative of е́сці (jésci)

cure, remedy

needle

spoke

crochet hook

needle

fodder, food

Used to express the coexistence of several conditions or qualities; both ... and ...

on the other hand; again; once more

first-person singular present indicative imperfective of есть (jestʹ)

Used for emphasized enumerations.

Source: wiktionary.org