Develop and Toughen

Develop verb - To gradually become clearer or more detailed.

Toughen and develop are semantically related In some cases you can use "Toughen" instead a verb "Develop".

Nearby Words: development, developed, developing, developmental, developer

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

Develop and toughen are semantically related in harden topic. Sometimes you can use "Develop" instead a verb "Toughen".

Nearby Words: tough, toughness, toughening, tougher