Akademik

gaol
Brit. var. of JAIL .

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gaol [gaol gaols gaoled gaoling] ; gaoler (BrE)
= jail, jailer

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gaol, gaoler
(dʒeɪl, ˈdʒeɪlə(r))
variant spellings of jail, jailer. In British official use the forms with G are still current; in literary and journalistic use both the G and the J forms are now admitted as correct; in the U.S. the J forms are standard.

Useful english dictionary. 2012.