What is the meaning of сам?

self, -self

alone, by oneself

the very ..., the ... himself/herself/itself

with beckoning verbs in the imperative: here, in this place

comb

alone, by oneself

comb

eye

seed

self, oneself

alone, solitary, lonely, secluded, on one's lonesome (by oneself without company)

alone, singlehanded (by oneself without help)

alone (by oneself without company)

alone, singlehandedly (by oneself without help)

bachelor, single man (man who is not married, who lives alone)

denotes spatial or temporal proximity; the very, right, oneself

emphasizes the utmost measure of a trait

self, -self

self, -self

alone, sole

the very

unaided, single-handed

absolute, mere, unmixed

solitary, secluded

first-person singular present enclitic of би̏ти

self, -self

Source: wiktionary.org