acer, apar, ape, apery, apex, apr, asper, aver, caper, paper, raper, taper.
parae, arepa, pacer, caper, crape, recap, raped, drape, pared, padre, perea, pager, grape, gaper, parge, raphe, japer, paler, pearl, parle, remap, arpen, opera, pareo, paper, parer, raper, presa, parse, asper, prase, apers, spear, rapes, reaps, apres, pears, pares, spare, peart, and 11 more.
Your query has returned 20 words, which include anagrams of aper as well as other shorter words that can be made using the letters included in aper.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.