All palindromes in our list
ABA, ABBA, AGA, AHA, ALA, ALULA, AMA, ANA, ANNA, AVA, AWA, BIB, BOB, BOOB, BUB, CIVIC, DAD, DEED, DEIFIED, DEKED, DELED, DENNED, DEWED, DID, DUD, EKE, EME, ERE, EVE, EWE, EYE, GAG, GIG, HAH, HALALAH, HALLAH, HEH, HUH, KAIAK, KAYAK, KEEK, KOOK, LEVEL, MADAM, MARRAM, MEM, MIM, MINIM, MOM, MUM, NAAN, NAN, NOON, NUN, OHO, OTTO, OXO, PAP, PEEP, PEP, PIP, POOP, POP, PULLUP, PUP, RADAR, REDDER, REFER, REIFIER, REPAPER, REVIVER, ROTATOR, ROTOR, SAGAS, SEES, SELLES, SEMEMES, SEMES, SERES, SEXES, SHAHS, SIS, SOLOS, SOS, STATS, STETS, SULUS, TAT, TENET, TERRET, TET, TIT, TOOT, TOROT, TOT, TUT, ULU, VAV, WAW, WOW, YAY
Patterns
Odd-length palindromes have a middle letter that mirrors itself (RADAR). Even-length ones mirror in pairs (ABBA, REDDER). Since a palindrome is fixed once you know its first half, they are rare: 101 of 172,670 words.
To find candidates yourself, use the word finder pattern field – for example r???r lists five-letter words that start and end with R, among them RADAR and ROTOR.