KanjiJLPT N1
Tie

tie, fasten, chain, tether, connect

Mnemonic

Grandma swings a tomahawk into the side of her car, splitting the door clean off! Now she has to tie the door back on with bungee cords. Every time grandma drives, the tomahawk-slashed door flaps like a wing, held on only by the desperate tie she rigged.
Additional thoughts
Picture grandma in a parking lot, tomahawk buried in the car door, frantically wrapping bungee cords to tie it shut. The absurd image of a tomahawk-damaged car held together by ties makes this stick.
Quick recall
Grandma chops her car door with a tomahawk and must tie it back on.

Details

The keyword for 繋 is tie. This kanji conveys the meaning of tying, binding, connecting, or fastening things together. It encompasses both the physical act of tethering or linking objects, such as tying up an animal, and the more abstract sense of maintaining bonds or connections between people or things. It carries a nuance of keeping something secured or held in place through a firm attachment.
On'yomi
けい
Kun'yomi
つな.ぐ、かか.る、か.ける