跡【あと】
trace, tracks, mark, sign, site, remains, ruins, scar
遺跡【いせき】
(archeological) remains, ruins, relics
足跡【あしあと】
footprints, record of page visitors (e.g. in social networking sites)
奇跡【きせき】
miracle, wonder, marvel
追跡【ついせき】
chase, pursuit, tracking, stalking, following up, tracing
軌跡【きせき】
tire track, traces of a person or thing, path one has taken, locus
傷跡【きずあと】
scar
史跡【しせき】
historic landmark, historic site, historic remains
跡継ぎ【あとつぎ】
heir, inheritor, successor