We must guard against our mistakes.

We must help him. (Negative) = We can not but help him.

We reached the station after the train had come.

We shall discuss about the matter. = We shall discuss the matter.

We should abide by the rules.

We should abide by the law.

We should love our country. (Imperative) = Let us love our country.

We should not hanker after money.

We trust to Allah.

We trust to Allah.

We write in ink.

Weal and woe =  Weal and woe comes by turns

wednessday = Wednesday

Weed out (অবাঞ্চিত জিনিস দূর করা)= We must raise the level of research and weed out the poorest work.

Well off=someone who is well-off is rich enough to be able to do and buy most of the things that they want.
Her family was very well off.