古い【ふるい】
old, aged, ancient, antiquated, antique, timeworn, long, since long ago, time-honored, of the distant past, long-ago, stale, threadbare, hackneyed, corny, old-fashioned, outmoded, out-of-date
古代【こだい】
ancient times, distant past, antiquity
古城【こじょう】
old castle, old fortress
稽古【けいこ】
practice, practising, training, study
古典【こてん】
classic (work, esp. book), the classics
中古【ちゅうこ】
used, second-hand, old, Middle Ages (in Japan esp. Heian period)
古本【ふるほん】
secondhand book, ancient book, antiquarian books
履き古し【はきふるし】
worn-out shoes, worn-out socks
古風【こふう】
old-fashioned, archaic, antique, antiquated
太古【たいこ】
ancient times
古墳【こふん】
ancient burial mound, barrow, tumulus
考古学【こうこがく】
archaeology, archeology
古書【こしょ】
old book, rare book, classic, secondhand book, used book
最古【さいこ】
the oldest, the earliest
中古車【ちゅうこしゃ】
used car, secondhand car
古語【こご】
archaic word, obsolete word, archaism, old saying, old adage, old language, ancient language
古都【こと】
ancient city, former capital
古臭い【ふるくさい】
stale, old fashioned, hackneyed, trite, antiquated, obsolete, musty, outdated
古紙【こし】
used paper, paper for recycling
古今【ここん】
ancient and modern times, all ages, past and present
