Ted Pettit, The World's Laziest Excel Power User. Views. x>=y means x is greater than or equal to y. You have to write it that way, x=>y is not allowed. Likewise, x<=y means x is lesser than or equal to y. And, you have to write it that way, x=<y is not allowed.
Freebase(0.00 / 0 votes)Rate this definition: Tic-tac. Tic-tac is a traditional method of signs used by bookmakers to communicate the odds of certain horses. Until the turn of the 21st Century it was a very common sight on racecourses in the UK, but with the advent of mobile technology it is now seldom seen.
In the Army, and I seem to remember it being in the Air Force too, TAC stands for Training, Advising, and Counseling, which would makes a lot more sense considering what TACs do. As I've researched this online, it seems that in CAP, using the term Tactical Officer instead of Training, Advising, and Counseling Officer is somewhat widespread.