Freebase(0.00 / 0 votes)Rate this definition: Specialization. Specialisation, is an important way to generate propositional knowledge, by applying general knowledge, such as the theory of gravity, to specific instances, such as when I release this apple, it will fall to the floor. Specialisation is the opposite of generalisation.
WASHINGTON (AP) â It's going to cost you a few pennies more to mail a letter. The cost of a first-class postage stamp is now 49 cents â 3 cents more than before. Regulators approved the price hike in December, and it went into effect Sunday.
The postage just has to add up to the postage of a letter. Right now an average letter of normal dimensions and weight, costs 45 cents. â¦Postcard rate is 32 cents, so you would need two stamps. Postage stamps are just like money, as long as it adds up to the current rate, even stamps that are 20 years old are valid. But a first class stamp twenty years ago was 24 cents.