1.
trace, mark
A visible sign left by something.
足跡が残っている。
Footprints remain.
傷の跡がある。
There's a scar.
雪の上に動物の足跡が残っていた。
Animal footprints remained in the snow.
2.
remains, ruins
What is left after something is gone.
城の跡を訪ねた。
I visited the castle ruins.
火事の跡に花が咲いていた。
Flowers were blooming on the remains of the fire.
この遺跡は古い文明の跡だ。
These ruins are the remains of an ancient civilization.
跡 means a trace, mark, or remains left by something.
COMMON COMPOUNDS:
- 足跡: footprint
- 傷跡: scar
- 痕跡: trace, evidence
- 遺跡: ruins, archaeological site
- 跡継ぎ: successor, heir
- 跡形もない: without a trace
COMMON EXPRESSIONS:
- 跡を残す: to leave a trace
- 跡を追う: to follow in someone's footsteps
- 跡が残る: a mark remains
DON'T CONFUSE:
- 跡: trace, mark (physical remnant)
- 後: after, behind, later (time/position)
These are different words despite same reading.