Because it comes from the latin "numero"
Even though the word "number" has no "o" in it, the abbreviation is No. because it is based on the Latin word numero (which is also Spanish for number).
Numéro ( actually a word borrowed from Italian) is abbreviated No.
The word "speaker" can be abbreviated as "spkr."
It is abbreviated to the "web".
ORG is how organization is abbreviated.
The word managed can be abbreviated in a couple different ways. These include "man" and "mgd". However, the word managed is not usually abbreviated.
Manager is abbreviated Mgr.
The word garden is generally not abbreviated because it is such a short word. However, it could be abbreviated as "gdn" or "grdn".
it is you've :)
An abbreviated number is a number which has had significant figures removed in order to make calculations easier - a number which has been rounded to an appropriate degree.
The word narrow is not generally abbreviated because it is a very short word. However, it could be abbreviated as "nar".
In the phrase "Chartered Accountant", abbreviated CA, the word "chartered" is abbreviated to C.