Definition of strong:

part of speech: adjective

Having great strength or ability of body; having moral, intellectual, or material force; vigorous; healthy; muscular; robust; having the power of exerting great force; forcible; having passive power; adapted to make a deep impression on the mind or on the senses; affecting strongly; having a particular quality in a great degree; intoxicating; ardent; zealous; compact; solid; not easily overthrown or altered; fortified; denoting military strength or number, as a thousand strong.