Synonyms: reenforce, reinforce
Definition: make stronger
Usage: he reinforced the concrete
Similar words: beef up, strengthen, fortify
Definition: make strong or stronger
Usage: This exercise will strengthen your upper body; strengthen the relations between the two countries
Definition: strengthen and support with rewards
Usage: Let's reinforce good behavior
Similar words: teach, learn, instruct
Definition: impart skills or knowledge to
Usage: I taught them French; He instructed me in building a boat