fulcrum

noun
UK /ˈfʊl.krəm/
US /ˈfʊl.krəm/

The fulcrum is the point where a lever rests and turns.

The seesaw's fulcrum is right in the middle.


OTHER MEANINGS

2. The point on which a situation or event depends.

Trust is the fulcrum of any good friendship.

3. A part of an animal or plant shaped like a small hook or support.

The insect's wing has a tiny fulcrum that helps it flap.

4. Something that holds or supports a structure.

The stone arch acts as a fulcrum for the bridge.