Difference b/w Pawn Lever/Pawn Break and Pawn Gambit

What I could understand about Pawn lever from Axel Smith's Pump up your chess rating:-

Advancing a pawn to a square where opponent's pawn can take it

And my understanding of pawn gambit:-

Offering a pawn for some edge

Since mostly they are offered to pawns only, what is difference between the two?

Well a pawn lever/pawn break wont usually lose the pawn. So while they can be captured, you can usually recapture.

A gambit usually relates to a sacrifice of a pawn during the opening.

A gambit always involves a sacrifice. A lever might or might not involve sacrificing material. For example, c7-c5 in the French is always a lever, but rarely a gambit.

I actually considered it to be a gambit, since taking the pawn gives black a lot of counterplay and a good pawn structure. And the fact that it can be declined with c2-c3 so that black may just put more pressure. Though the d7-d5 may be considered only a lever because taking it by white just opens up the position and may involve quick trading of queens but gives no edge of any sort.

A lever isn't done to lose a pawn, that's right, but gambits also gain it back in some way, and may bring more material soon. And conpensation can be measured in pawns, so arbitrer gets back easily hat is lost in a gambit, not neccessarily in the opening.

So it is not clear to me what you mean.

Without a diagram it's pointless to name squares...

It's an interesting question though, I'd never realized the two (pawn breaks and gambits) were similar.  (Pawn breaks and pawn leavers are the same thing by the way).

The main feature of a pawn break is you're opening lines (files or diagonals) to the benefit of your non-pawns.  An easy example would be to open file for a rook.

A gambit is giving up a pawn for any kind of compensation, and when used in chess is talking about the opening phase.  If you give up a pawn for positional reasons at any other time in the game it's just called a pawn sacrifice.

Your question points out something interesting though... that some gambits could also correctly be called pawn breaks.