a
gainst
1
in opposition to someone or something
- I decided to go against the advice of my friend.
- She has been fighting against discrimination for years.
- The team is playing against the national champions next week.
- This medicine is effective against flu symptoms.
- We must protect the environment against pollution.
2
used to indicate acting as a defense in the face of a negative force or outcome
- We vaccinated our children against the flu.
- He installed a security system against burglaries.
- The insurance policy provided coverage against natural disasters.
3
used to indicate the relationship between a sum of money (loan, financing, guarantee) and the corresponding asset or security
- He borrowed $1,000 against his car as collateral.
- They received a loan against their house.
- The business owner secured financing against future sales.
4
in direct contact with or close proximity to
- The ladder leaned against the wall.
- He leaned against the tree for support.
- The cat rubbed against my leg.
- The child pressed her face against the window.
5
in opposition to; in contrast with
- The bold design of the modern building stood against the traditional architecture of the surrounding structures.
- The artist intentionally placed dark shadows against the bright sunlight to create a dramatic effect.
- The minimalist artwork stood out against the elaborate paintings in the gallery.
- The quiet melody played by the violin was set against the lively rhythm of the drums.
6
used to indicate the exchange, substitution, trade, or compensation of one item, service, or benefit for another
- He traded his bicycle against a skateboard.
- They offered a discount on the product against a coupon.
- She exchanged her euros at a favorable rate against the dollar.