This is the 9056th most frequent Japanese word.
添える
To add, attach, or accompany.
Here, '添える' is used in the sense of adding or attaching something as a complement or enhancement.
料理に彩りを添えるためにパセリを使用しました。
I used parsley to add color to the dish.
In this sentence, '添える' conveys adding feelings or emotions as an accompaniment to the communication or action.
お手紙に心を添えてお贈りします。
I send this letter with heartfelt sentiments.
'添える' is used to indicate attaching supplementary information or an object, like a signature, to an existing document or item.