jiè

numerary adjunct for time

Evolution

届 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
届 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
届 Regular script Modern

Regular script

Modern
Definitions

() 

jiè

numerary adjunct for time, term; to arrive at (place or time); period; to become due; classifier for events, meetings, elections, sporting fixtures, years (of graduation)

Most common words with 届
Freq.
Word
Meaning

period

届时

when the time comes

本届

current

首届

first session (of a conference etc)

应届

this year's