Usage
As a standalone noun, 定期 usually means 'commuter pass' (定期券). As a prefix, it means 'regular' or 'fixed-term.'
Compounds
Similar words
- 不定期: the opposite, irregular or unscheduled (不定期便)
- 定例: regular in the sense of a fixed, customary event (定例会議, a regular meeting); 定期 stresses a set interval or term