かまん

no problem

Word type: 

Kanji: 

構ん

Standard: 

かまわない

Standard kanji: 

構わない

Example: 

今日、あんたとこ行ってもかまん
Do you mind if I come over to your place today?

Commentary: 

This is an abbreviation of かまわん.
かまわん is the negative form of かまう, which means "to mind".

かまわん → かまん

Some people say かめへん or かまへん instead of かまん.
However, among young people, かまん is more common than かめへん and かまへん.