作主

to decide / to make decisions / to take responsibility (for deciding) / to be in charge / to give sb justice

to decide; to have the final say

worker / workshop / (slang) troublesome / high-maintenance (person)

to do; to engage in / to write; to compose / to pretend; to feign / to regard as; to consider to be / to be; to act the part of / to feel (itchy, nauseous etc) / writings; works

owner / master / host / individual or party concerned / God / Lord / main / to indicate or signify / trump card (in card games)

to think for oneself and act accordingly (idiom); to act on one's own initiative

to be in charge in one's own house (idiom) / to be the master of one's own affairs