kana written after a kanji to complete the full (usually kun) reading of the word; declensional kana ending
送り仮名を間違えると意味が変わることがある。
Mistakes in okurigana can change the meaning.
漢字の送り仮名のルールは複雑だ。
The rules for okurigana with kanji are complicated.
小学生の時に送り仮名の書き方を習った。
I learned how to write okurigana in elementary school.