"Up against" refers to a particular rival or challenger (or obstacle). In winning this race, we know who we are up against. Jack is the man to beat.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
fatimah0786What is the difference between "We know who we are up against" and "We know who we are against"?Thanks.'against' implies opposition (to something or someone). Adding 'up' suggests that the opposition will be a challenge, difficult to overcome.