n. & adj.
--n.
1. the position in a sequence corresponding to that of the number 6 in the sequence 1-6.
2 something occupying this position.
3 any of six equal parts of a thing.
4 Mus. a an interval or chord spanning six consecutive notes in the diatonic scale (e.g. C to A). b a note separated from another by this interval.
--adj. that is the sixth.
Phrases and idioms:
sixth form Brit. a form in a secondary school for pupils over 16. sixth-form college Brit. a college for pupils over 16. sixth-former a pupil in the sixth form. sixth sense
1. a supposed faculty giving intuitive or extrasensory knowledge.
2 such knowledge.
Derivatives:
sixthly adv.
Etymology: SIX