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natural; right; proper; just; reasonable; appropriate; deserved
naturally; as a matter of course; rightly; deservedly; justly; of course
努力した人が報われるのは当前のことだ。
It's only natural that those who work hard are rewarded.
当前の結果だと皆が納得していた。
Everyone was convinced it was the expected outcome.
ルールを守るのは社会人として当前だ。
Following the rules is a given for working adults.