History
History
Synonyms
UK
US
Meaning:
capability

power, fitness or capacity

ability to perform

energy

(of a person) the force, strength, capacity, to do things and get things done

person's spirit and vigor

forte

something a person does particularly well

person's strong point

power

(in living things) the ability to do or act; energy that can be used to do work; authority; influence

ability, competence

validity

genuineness, lawfulness

genuineness, lawfulness

EFFECTIVENESS as in Wiktionary
EFFECTIVENESS as in Wikipedia