instructor

NOUN /ɪn'strəktər/
10 LETTERS · 3 SYLLABLES · STARTS WITH I

instructor is a valid 10-letter word worth 12 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1S1T1R1U1C3T1O1R1
1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING

What does instructor mean?