up to

1. Occupied with, engaged in, as in What have you been up to lately? This usage can mean “devising” or “scheming,” as in We knew those two were up to something . It also appears in up to no good , meaning “occupied with or devising something harmful,” as in I'm sure those kids are up to no good . [First half of 1800s]

2. As far as or approaching a certain point. For example, The water was nearly up to the windowsill , or They allowed us up to two hours to finish the test , or This seed should yield up to 300 bushels per acre . [c. a.d. 950]

3. Dependent on, as in The success of this project is up to us . [c. 1900] Also see the following idioms beginning with up to .

4. be up to . Be able to do or deal with, as in When I got home, she asked if I was up to a walk on the beach . This usage is often put negatively, that is, not be up to something , as in He's not up to a long drive . [Late 1700s]

Example Sentences

After nearly a decade of this, though, anyone who has bet good money on elected Republicans standing up to Trump has already gone broke.

From Salon

The trial, which is anticipated to last for up to five weeks, continues.

From BBC

As important as this election was, about half of all registered voters didn’t show up to the polls.

From Salon

The Hunter Foundation has announced that for every pound donated to McGuinness's challenge from Wednesday onwards it will match the amount - up to a maximum of £2m.

From BBC

Council tax bills in England are set to rise by up to 5% next April, after the government confirmed it was sticking with the current cap on increases.

From BBC