Enter a clue or pattern or both:
The Clue
Cousins of normal schs. (3 letter answer)
The Answer
TCS
Tags
Notes
The answer TCS is so rare that it appears less than once every 2500 puzzles.
Definition
TC as a noun:
1. (technetium, Tc, atomic number 43) = a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
2. (Trusteeship Council, TC) = a permanent council of the United Nations that commissions a country (or countries) to undertake the administration of a territory