work; labor / achievement; ability; performance; talent / salary; earnings; income

work done for free, unpaid work, uncompensated work / work done in vain, work with no favorable end result

to work for free, to work without pay or other compensation / to work in vain, to work with no favorable end result

(archaic, grammar) any word that declines or conjugates / (archaic, grammar) more specifically, a verb

matrimonial quarrel

husband and wife pair who is no longer in love

husband and wife retaining different surnames

those who do not work should not eat

you should not interfere in a marital dispute

“even dogs wouldn't eat a marital dispute” → you should not interfere in a marital dispute