Tightening and Toughen

Tightening noun - The act of making something tighter.

Toughen and tightening are semantically related. in constrict topic. In some cases you can use "Toughen" instead a verb "Tightening".

Nearby Words: tighten, tightened, tightener

Toughen verb - To increase the ability of (as a muscle) to exert physical force.

Tightening and toughen are semantically related. Sometimes you can replace term "Tightening" with "Toughen", this verbs are similar.

Nearby Words: tough, toughness, toughening, tougher