As nouns the difference between thirds and thirls
is that thirds is plural of lang=en while thirls is plural of thirl.
As verbs the difference between thirds and thirls
is that thirds is third-person singular of third while thirls is third-person singular of thirl.
thirds
English
Noun
(head)
(legal) The third part of the estate of a deceased husband, which, by some local laws, the widow was entitled to enjoy during her life.
Verb
(head)
(third)
thirls
English
Noun
(head)
Verb
(head)
(thirl)