for

preposition:used to indicate the recipient or beneficiary of an action
- This seat is for guests.
preposition:used to express purpose or goal
- She saved money for college.
preposition:used to specify the intended function or use of something
- This tool is for cutting metal.
preposition:used to indicate duration of time
- There was an outage for two hours.
preposition:used to indicate destination or intended direction
- The 6 p.m. train is for Paris.
preposition:used to indicate a scheduled time or occasion
- The meeting is scheduled for Friday.
preposition:used to express exchange, price, or rate
- The tickets were sold for $50.
preposition:used to show support, favor, or alignment
- Her vote was for the reform.
preposition:used to express reason or cause
- He received a medal for bravery.
preposition:used for comparison against a standard
- She is tall for her age.
preposition:used to indicate representation or acting on behalf of someone
- I signed the form for the team.
conjunction:because; since
- We must hurry, for the storm is near.