To perceive visually through something transparent.
Their fabric is so thin that I can see through these curtains.
To not be deceived by something that is false or misleading; to understand the hidden truth about someone or something.
I can see through his poker face, he isn't fooling anyone.
To recognize someone's true motives or character.
In that moment, I saw right through her; this petition drive had nothing to do with her love for animals, and everything to do with impressing Michael, the cute intern.
To provide support or cooperation to (a person) throughout a period of time; to support someone through a difficult time.
And may we all, citizens the world over, see these events through.
To do something until it is finished; to continue working on (something) until it is finished.
Despite her health problems, Madame Prime Minister saw the project through.
To constitute ample supply for one for.
Those chocolates should see us through the holiday season.