сражаться vs. воевать vs. ...

[upthera44.livejournal.com]

Dear community! It's been a while. Could someone explain to me the differences between the war verbs 'to fight, battle, make war': сражаться и воевать? And are there any other variants? Спасибо!

жар and жара

[upthera44.livejournal.com]

And one more question please. Could someone explain the logic behind the forms of the word жара and жар.

It seems that жара is the one that is used commonly. It is not feminine, though is it? For example could you say "такая жара"? When is жар used? Спасибо!

пофигизм?

[the-snowgoose.livejournal.com]

Hello everyone.

I came across a word today that I do not have any reference for, and hoped someone could assist.

The word is пофигизм; possibly пофиги.

The context of the sentence that I saw this word was, "Солнце, воздух, пофигизм укрепляют организм!" Sunshine, fresh air, and (blank) strengthens the body.

Thank you,