POLITE - [adjective] having good manners, showing respect for the others
Examples of use
I know you don't like them, but you should be more polite to them anyway.
Teachers complain that there are no polite pupils nowadays.
Learn more English words
English speaking practise
Remember that if you don't use that word in English conversations or writing you'll forget it in a short time. So the best thing you can do to learn this word is just trying to use it in speaking or writing. Remember also that practise is the key to fluent english speaking.
You can always find a partner, who would also like to improve his/her