One who assumes.

plural of assumer

present participle of assume the mantle

The act of one who assumes the mantle.

An alias, especially one adopted in order to deceive

Often used other than figuratively or idiomatically: to assume a given position.

(figuratively, with "of") To take on a specific role or position, along with any associated responsibilities.

plural of assumed name

Eggcorn of just as soon.

Third-person singular simple present indicative form of assume the mantle