all day long

The whole day. Carol waited all day long for the cable repair man to arrive, but he never did.

throughout the day; during the entire day. We waited for you at the station all day long.

Name	Pronounced	Usage
Iseult	i-SOOLT (English), i-ZOOLT (English), EE-səlt (English)	Arthurian Romance
Luiz	-	Portuguese (Brazilian)
Columba	ko-LOOM-ba (Late Roman), kə-LUM-bə (English)	Late Roman
Milivoj	MEE-lee-voi (Croatian, Serbian)	Croatian, Serbian, Slovene, Medieval Slavic
Thecla	-	Dutch (Rare), Late Greek (Latinized)
Jong	-	Korean