A holiday is a special day for religious or cultural reasons - such as Christmas, Easter, New Year's Eve, and your country's Independence Day. Some holidays are also official days off from work, and others are not.

A vacation is when you take multiple days off from work/school to relax and/or travel. However, American English speakers call this a vacation and British English speakers call this a holiday:

My parents are on vacation in Asia. (American English)

My parents are on holiday in Asia. (British English)

Vitamin
Vitamin : b6 (pyridoxin)
Occurrence : bananas, nuts, wholemeal products, yeast, liver, potatos, green beans, cauliflower, carrots
Lack : (rather rarely) intestine problems, bad skin, tiredness, rough corners of the mouth
Daily need : approx. 2 mg.      .. More >>