Controlled Ecological Life Support System
There are many different possible organizations and businesses that the acronym ICAN could stand for. This acronym could stand for the International Cesarean Awareness Network. This acronym could also stand for the Independent Community Arts Network.
Letters that stand for parts of a name are called initials.
There is no acronym with the letters CORNER. It does not stand for anything because it does not exist. No concept or organization uses the acronym CORNER.
The acronym FLS has a few things that it could stand for. Some of those would be Fire & Life Safety, Flowserve Corporation, or even Francais Lague Seconde which is French for French as a second language.
The letters in the word BIOLOGY do not "stand for" anything. The word means "the study of life" because it is composed of Latin "bios" meaning "life" and "logy" meaning "study of." It is not an acronym for anything.
Nun is a word, not an acronym. It means a woman who has consecrated her life to God.
TLA is an acronym that can stand for many things. In fact, it is sometimes used to stand for "Three Letter Acronym". It can also stand for Texas Library Association, Textile Labour Association and a host of other things as well.
The acronym AB stands for Architect Building.
The acronym AAF stands for Army Airfield.
The acronym AD stands for Anno Domini.
The acronym AP stands for Apical Pulse.