As nouns the difference between headmaster and grandmaster
is that headmaster is a male school principal while Grandmaster is the highest title a chess player can attain; also called International Grandmaster; abbreviated GM or IGM.
headmaster
English
Noun
(
en noun)
(chiefly, UK) A male school principal.
Usage notes
The term is gender-specific, and refers to a male in the position. A female in the same role would be called a headmistress .
Synonyms
* headteacher
* principal
Anagrams
*
grandmaster
English
Noun
(
en noun)
The highest title a chess player can attain; also called International Grandmaster ; abbreviated GM or IGM.