KanjiJLPT N4
Period

period, time, date, term

Mnemonic

A squid floats in the dark ocean, staring up at the moon to track every period of its life. Each time the moon completes a full cycle, one period ends and a new one begins—feeding, mating, migrating. The squid times everything to lunar phases, nature's perfect calendar.
Additional thoughts
Picture a giant squid hovering near the surface, enormous eye reflecting the moon. Its tentacles spread like clock hands marking intervals. Lunar cycle = defined span of time = period.
Quick recall
A squid times each period of life by the moon's phases.

Details

The keyword for 期 is period. This kanji refers to a defined span or interval of time, such as a term, phase, or season. It conveys the idea of a set duration with a beginning and an end, and is used to express concepts like deadlines, scheduled times, or stages in a process. It can also carry the nuance of anticipation or expectation, as in awaiting a particular moment or outcome.
On'yomi
き、ご