chā​rù

to insert

插入 chā​rù
to insert verb
to insert; to stick in; to plug in; to put something into a gap or opening

Insert a toothpick into the center of the cake.

to join
to join a group or sequence, such as a student joining a grade level or an item being added to a file
insertion
(linguistics) the process or result of inserting a linguistic element into a structure

Frequency

Movie subtitles
4.89 per million appears in 2% of films
Written text
8.26 per million

Sources