Abbr.

It’s pointless to abbreviate words if:
• They make more sense as the original
• They have the same number of syllables as the original

In addition, if you are talking, over abbreviating on average takes more time.  More often than not the other person won’t understand, and you have to take additional time explaining.

This happens a lot when you talk to college students.  Colleges are full of abbreviations, from the university names themselves, the names of the buildings, and majors.  Is it really too difficult to say “Political Science”?  PolySci doesn’t really save much time/effort.  I can understand BME for “Bio-Medical Engineering,” but seriously.  Communication is always important, and being clear is key.