Synonyms and related words :
attend, attend to, auscultate, be all ears, bend an ear, bug, buzz, call, call up, cock the ears, dial, eavesdrop, examine by ear, give a ring, give attention, give audience to, give ear, hang up, hark, hear, hear out, hearken, heed, hold the phone, intercept, lend an ear, listen, listen at, listen to, make a call, phone, ring, ring off, ring up, sit in on, tap, telephone, tune down, tune in, tune up, wiretap