Simple Definition of reinforce
: to strengthen (a group of people) with new supplies or more people
: to strengthen (something, such as clothing or a building) by adding more material for support
: to encourage or give support to (an idea, behavior, feeling, etc.)
Full Definition of reinforce
1 : to strengthen by additional assistance, material, or support : make stronger or more pronounced <reinforce levees> <reinforce the elbows of a jacket> <reinforce ideas>
2 : to strengthen or increase by fresh additions <reinforce our troops> <were reinforcing their pitching staff>
3 : to stimulate (as an experimental animal or a student) with a reinforcer; also : to encourage (a response) with a reinforcer
: to seek or get reinforcements
Examples of reinforce
The captain sent out another squad to reinforce the troops.
Our camp is reinforced with supplies flown in by helicopter.
The levees will need to be reinforced.
The bad weather forecast only reinforces our decision to leave early tomorrow.
Some critics say that the movie reinforces negative stereotypes about the military.
We do our best to reinforce good conduct in the classroom.
Variants of reinforce
Origin of reinforce
re- + inforce, alteration of enforce
First Known Use: 1567
Medical Definition of reinforce
1: to strengthen by additional material or support : make stronger <reinforced with vitamins>
2: to stimulate (as an experimental animal or a student) by reinforcement; also : to encourage (a response) by reinforcement
Seen and Heard
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