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

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

an alchemist (one who practices alchemy)

a practitioner of 陰陽道 (onmyōdō, “esoteric cosmology based on Chinese philosophy and traditional Japanese occult practices”)

(historical) under the 律令 (Ritsuryō) system, a position in the 陰陽寮 (On'yōryō) who specialized in Chinese-influenced astrology, cosmology, divination, and other occult practices