What does 書き入れる mean?
書き入れる is a Japanese verb meaning “to write in” in English. It is written as 書き入れる in kanji, かきいれる in hiragana, and kakiireru in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
トムが書いた字を読むのはほとんど無理だ。
It's almost impossible to read Tom's handwriting.