- Against; next to; near; towards; as far as.
- Go up to the counter and ask.
- I've read up to chapter 5.
- Capable of.
- Are you up to lifting something that heavy?
- Ready for.
- Are you up to the challenge?
- Willing to participate in.
- Are you up to going to the beach?
- As much as; no more than.
- You can make up to five copies.
- For the option or decision of.
- It's up to you whether to get the blue one or the red one.
- Doing; involved in (with implications of mischief).
- What have you been up to?
- Incumbent upon; the obligation of; the duty of.
- It's up to the prosecution to prove that the defendant is guilty.
- (mathematics) Considering all members of an equivalence class the same.
- There's only one rooted tree with two leaves, up to ordering.
- An example of up to used as an adverb is in the sentence "This paper is up to standard," which means that the paper meets the standards.
- An example of up to used as an adverb is in the sentence "Add all the items up to the next to last item," which means that all items except the last two items should be added together.
Up to is defined as doing, involved with, until or adequate.