semitone

n (US `half tone) half of a tone on the musical scale 半音.

semi-, semi-conscious, semi-detached, semi-skilled, semibreve, semicircle, semicircular, semicolon, semiconductor, semifinal, semifinalist, seminal, seminar, seminarist, seminary, semiotics, semiprecious, semiquaver, Semite, Semitic, semitropical, semivowel, semolina, sempstress, SEN, senate, senator, senatorial, send, send away for, send for, send for sb., send in, send off, send out, send round, send sb. doing sth., send sb. to school, send up, send-off,