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to hold between (e.g. one's fingers, chopsticks); to grip (from both sides)
to put between; to sandwich between; to insert; to interpose
to catch (e.g. a finger in a door); to trap; to pinch
to insert (e.g. a break into proceedings); to interpose (e.g. an objection); to interject; to throw in (e.g. a joke)
to be on either side of (a road, table, etc.); to have between each other; to be across (a street, river, etc.)
to harbour (feelings); to cast (e.g. doubt)
to pincer
本の間にしおりを挿んでページを記録した。
I placed a bookmark between the pages to mark my spot.
会話に口を挿むのは失礼だと注意された。
I was warned that interrupting a conversation is rude.
書類の間に付箋を挿んで目印にした。
I stuck a note between the documents as a marker.