Fetching details from the dictionary...

to fit (e.g. a pane into a frame); to insert (e.g. a cork); to fasten (a button)
to put on (something that envelops; e.g. a ring, gloves); to place (a hoop) around; to attach (e.g. a hose to a tap)
to pigeonhole (into a particular category); to force (into a mold); to place (restrictions) on
to entrap; to take (someone) in; to set (someone) up; to deceive
to throw into
to have sex; to fuck
「填める」 has another reading with different meanings.
穴を砂利で填めてきれいに整えた。
I filled the hole with gravel and tidied it.
職人が古い窓枠に新しいガラスを填めた。
The craftsman fitted a new pane of glass into the old window frame.
彼は左手の薬指に金の指輪を填めている。
He is wearing a gold ring on his left ring finger.