Letters that make up to
o, p, t, u are letters that make 'up to'
Words within up to
up are words within 'up to'
o, p, t, u are letters that make 'up to'
up are words within 'up to'
1 possible definitions for 'up to'
Under this definition, up to is an adjective and has the following properties:
busy is similar to up to.
"what have you been up to?", "up to no good"