1. fighting between armed forces or individuals
2. active opposition or struggle against something

1. to fight against or oppose actively

Examples

• The soldiers prepared for combat at dawn.
• He saw combat during his military service overseas.
• The new medicine helps combat infection.
• Scientists are working to combat climate change.
• The boxer will combat his opponent next week.
• We must combat poverty in our communities.
• The army engaged in fierce combat with enemy forces.