semantics

n [sing v] branch of linguistics dealing with the meanings of words and sentences 语义学.

selfishly, selfishness, selfless, selflessly, selflessness, selfsame, sell, sell off, sell out, sell up, sell-by date, sell-out, seller, seller's market, selling price, selling-point, Sellotape, selvage (also selvedge), selves, semantic, semaphore, semblance, semen, semester, semi, semi-, semi-conscious, semi-detached, semi-skilled, semibreve, semicircle, semicircular, semicolon, semiconductor, semifinal, semifinalist, seminal, seminar, seminarist, seminary,