Synonyms of lend a hand in English:

lend a hand


See definition of give (or lend) a hand

phrase

1‘an agricultural student who had come to lend a hand with the harvest’

SYNONYMS
help, help out, give a helping hand, assist, give assistance, aid, make a contribution, do someone a favour, take part, do one's bit
cooperate
informal pitch in, muck in, get stuck in, get involved