be down to (something)

be down to (something)

1. To be or be considered the essential or most important factor or thing. Our success is down to our persistence and precise planning.
2. To have something reduced to a minimal amount. I can't come with you tonight. I'm down to my last dollar, I'm afraid. We're down to the last two days of the competition, so be sure to enter for your chance to win!
See also: down

be down to something

COMMON If something is down to something else, the second thing is the cause of the first. When you are asked to score goals, then a lot is down to confidence and Kevin has that. I think that the show's popularity is down to two things.
See also: down, something

be down to something

have nothing except one or a few items of the kind mentioned: I’m down to my last penny.
See also: down, something