also: ことしちゅうに
by the end of this year; within this year
Used to set a deadline or express that something will happen before the current year ends. The reading ことしじゅうに is more common than ことしちゅうに.
I plan to move by the end of this year.
I have to finish this work within this year.
Standard kanji spelling; the reading ことしじゅうに is the most common.
Alternate reading; less common but still used.
Compound of 今年 (this year) + 中 (within) + に (particle). The reading じゅう is the standard kun'yomi-based reading for 中 in this temporal sense; ちゅう is an alternative on'yomi reading.