Betray. Reveal, expose, divulge, deliver up, deceive; manifest, show, indicate; lure, ensnare, entrap, beguile; seduce, ruin, corrupt.
Ant. Protect, preserve, foster, cherish, conceal, suppress, guard.
Betrothal. Engagement, plighting, affiancing.
Better. Amend, ameliorate, improve, correct, advance, reform.
Ant. Make worse, degrade, wreck, weaken, cripple, impair, injure.
Between. Amid, among, betwixt.
Ant. Outside, beyond, without.
Bewail. Bemoan, lament, sorrow, grieve.
Ant. Rejoice, joy, exult.
Beware. Take care, be cautious, be wary, look out, mind.