Synonyms of opener

1 Syllable

screw, knurl, knob

2 Syllables

runup, walkup, passkey, keyword, starter, debut, leadoff, walk-up, run-up, latchkey, doorknob, starters

3 Syllables

skeleton, beginning, abraxas

4 Syllables

commencement, paternoster, curtain-raiser, incipiency, embarkation, nativity, incipience