STRANGER - [noun] a person that you don't know
Examples of use
A tall, dark-skinned stranger waved to me in front of the shop. Do you know him?
The quietness of the village was disturbed by the arrival of the stranger from an unknown land.
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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