To act up to

Related to To act up to: Act utilitarianism
to equal in action; to fulfill in practice; as, he has acted up to his engagement or his advantages.

See also: Act

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The design was given to ACT UP to use at an early action, and "Silence = Death" was adopted as the organization's slogan.