The difference between 'cut down' and 'cut'
We need to cut the cost right away.
We need to cut down the cost right away.
We need to cut down on the cost right away.

What's the difference between the above three sentenecs?

Question

The difference between 'cut down' and 'cut'
We need to cut the cost right  away.
We need to cut down the cost right  away.
We need to cut down on the cost right  away.

What's the difference between the above three sentenecs?

Answer

Sentences one and three are correct. "Cut" is very generic. If you cut something, maybe you are making a small incision with a knife, maybe you are making one item into many with a sharp object. Sometimes a person can be cut (removed) from a team. "Cut down"  is to cut something (like a tree) so that it falls.  If you "cut down ON" something, it means "consume/use/spend less."

Answer

Nothing.