a long while vs the meantime in Korean
한참vs그동안

한참a long while
한참 means "for a long while" or "for quite some time." Use it when an action continues longer than you expected, like waiting, talking, or walking. It often comes before the action word to show that something lasted a long time (한참).
When to use a long while
그동안the meantime
(그동안) means "during that time" or "in the meantime." You use it when one action is happening, and another action happens while you wait. It can also mean "all this time" when talking about the period until now.
When to use the meantimeHow they differ
a long while (한참) and the meantime (그동안) are nearby Korean vocabulary items learners often meet together. Use “a long while” when 한참 means "for a long while" or "for quite some time." Use it when an action continues longer than you expected, like waiting, talking, or… Use “the meantime” when (그동안) means "during that time" or "in the meantime." You use it when one action is happening, and another action happens while you wait.…