後|ごgo[1]atamadaka (head-high)

1. noun, noun (suffix), adverbafter
   １週間しゅうかん後ごに、その家いえは倒壊とうかいした。↗

   Down fell the house a week later.

• Synonym今後こんごWrittenWritten word for 'from now on', as in 「今後とも」. Covers the whole time ahead from the present onward.
• Synonym以後いごWrittenWritten word for 'after that', as in 「それ以後」. Its focus is the dividing point in time.
• Synonymこの後このあとNeutralRefers to what comes right after now, as in 「この後どうする」. More colloquial than the suffix 「〜後」, with an eye on the immediate future.
• Related先々さきざきCasualColloquial word for the future ahead or for the places one goes, as in 「先々のことを考える」.
• Related向後こうごFormalFormal, literary way to say 'hereafter'. Uncommon today; in daily speech use 「今後」 instead.
• RelatedこれからCasualColloquial for 'from now on', as in 「これから始める」. Takes right now as its starting point.
• Related末々すえずえWrittenWritten word for the distant future or for descendants. Reaches much further ahead than 「後」.
• Related自今じこんFormalFormal term for 'from now on', used mostly in official documents and rules, as in 「自今以後」.
• Relatedお次おつぎCasualColloquial for 'the next person', as in 「お次の方」. Used when calling whoever is next in line.
• Antonym先さきNeutralThe opposite of 「後」: what comes before, as in 「先に行く」. Focuses on the order — who or what goes first.
• Antonym前ぜんNeutralThe same word as 「先」 above, also written 「前」 and read 「さき」. Means the front or what came before — the counterpart of 「後」.

Use the suffix 「〜後」 by default for 'after'. For 'after this' say 「この後」; for 'from now on' in writing, 「今後」; for 'thereafter' with a clear time boundary, 「以後」; in official documents, 「自今」; and for 'starting now' in speech, 「これから」. For 'before', use 「先」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （あと、のち）時間じかんの呼称こしょう。ある時点じてんに対たいして未来みらいとなる時点じてん。
2. （ゴ）動作どうさや行為こういに遅おくれて成立せいりつすること。