Definitions

to understand something or to find the answer to something by thinking about it:

to light a cigarette:

to mention something bad that happened in the past, so that people become aware of it again:

to increase a number to the nearest whole or simple number

to make something by putting different pieces of equipment or material together:

to break the ground or to make a hole in it with a tool, machine, etc.:

to bring a player onto the field to play during a game: