We use against to refer to negative, hostile or opposing reactions to situations, beliefs, people, events, etc.
Against with verbs
Millions of people campaigned against the war.
It’s not easy to go against your parents’ advice.
That referee has something against our team. (he doesn’t like our team)
Here are some common verbs often followed by against:
act | decide | guard | speak out |
advise | demonstrate | have something | struggle |
argue | discriminate | protest | testify |
be | fight | react | vote |
campaign | go | rebel |
Against with nouns
Discrimination against people on the basis of race, age or gender is illegal.
Everyone can be part of the fight against litter.
The best protection against illness is a good diet and lots of exercise.
Here are some common nouns often followed by against:
accusation | campaign | discrimination | protest |
action | case | evidence | reaction |
aggression | charge | fight | rebellion |
appeal | complaint | law | |
argument | defence | prejudice | |
battle | demonstration | protection |