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
reinforceableplay \-ˈfȯr-sə-bəl\ adjective
Examples of reinforce in a sentence
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 and Etymology of reinforce
re- + inforce, alteration of enforce
First Known Use: 1567
REINFORCE Defined for English Language Learners
Definition of reinforce for English Language Learners
: 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.)
REINFORCE Defined for Kids
Definition of reinforce for Students
1 : to strengthen with new supplies or more people <Another squad reinforced the troops.>
2 : to strengthen by adding more material for support <The wall needs to be reinforced.>
Medical Definition of reinforce
Seen and Heard
What made you want to look up reinforce? Please tell us where you read or heard it (including the quote, if possible).