Pronunciation: (ok'troi; Fr. ôk-trwa'),[key] —n., —pl.-troisPronunciation: (-troiz; Fr. -trwa').[key] 1. (formerly esp. in France and Italy) a local tax levied on certain articles, such as foodstuffs, on their entry into a city.
2. the place at which such a tax is collected.
3. the officials collecting it.
4. the act of a sovereign in granting to subjects a constitution or other charter.