This is a complete list of words in /usr/share/dict/words that can be spelled with hex (fun with sed): 0 01a 01af 01d 01e0 0770 0a7 0af 0b 0b0e 0b1a7e 0c7 0c7a1 0c7e7 0c7e77e 0ce107 0dd 0ddba11 0de 0de11 0f 0f7 0ff 0ff10ad 0ffa1 0ffbea7 0ffed 1 10 1007 1007ed 1011 1011ed 101a 107 1077 10770 10ad 10adab1e 10aded 10af 10afed 10b 10bbed 10be 10bed 10c0 10ca1 10ca11ed 10ca1e 10ca1ed 10ca7e 10ca7ed 10de 10f7 10f7ed 17 17d 1a 1a0 1a7e 1ab 1abe1 1abe11ed 1abe1ed 1ac7a7e 1ac7a7ed 1ace 1aced 1ad 1ad1e 1ad1ed 1ade 1aded 1e 1e0 1e01a 1e1a 1e7 1e7a 1ea 1ead 1eaded 1eaf 1eaf1e7 1eaf1e77ed 1eaf1e7ed 1eafed 1ed 1eda 1ee 1ef7 7 70 700 7001 7001ed 7007 7007ed 7011 7011ed 701d 701ed0 707 7070 7077ed 707a1 707a11ed 707a1ed 707e 707ed 70ad 70bacc0 70d 70dd 70dd1e 70dd1ed 70e 70ed 70ffee 71 71a10c 7a 7a0 7a11 7a1b07 7a1c 7a1e 7a7 7a7700 7a7700ed 7a771e 7a771e7a1e 7a771ed 7a77ed 7a7e 7ab 7ab00 7ab00ed 7ab1e 7ab1e7 7ab1ed 7abbed 7ac0 7ac7 7ad 7af7 7affe7a 7b 7c 7e11 7e117a1e 7ea 7ea1 7ea7 7eaed 7ed 7ee 7ee707a1 7eed a a100f a10e a10f7 a11 a1107 a11077ed a110ca7e a110ca7ed a170 a1b a1e a1fa1fa a7 a7011 a7e ab0de ab0ded ab1e aba7e aba7ed abaf7 abb07 abe7 abe77ed abed ac7 ac7ed acc01ade acc01aded accede acceded ace ace7a7e aced ad ad0 ad0be add add1e add1ed added af007 af10a7 af7 affab1e affec7 affec7ed b b00 b007 b007ed b007ee b00b b00bed b00d1e b00ed b011 b011ed b017 b017ed b01a b01d b01dface b01e b0771e b0771ed b0a b0a7 b0a7ed b0b b0bb1e b0bb1ed b0bbed b0bca7 b0de b0ded b100d b107 b1077ed b10a7 b10a7ed b10b b10bbed b10c b1ab b1abbed b1ade b1aded b1ea7 b1ea7ed b1ed b1eed ba0bab ba11 ba1107 ba1107ed ba11ad ba11e7 ba11ed ba1d ba1ded ba1e ba1ed ba7 ba771e ba771ed ba77ed ba7e ba7ed baa baaed babb1e babb1ed babe babe1 bad bade baff1e baff1ed be be11 be11e be11ed be17 be17ed be1a7ed be7 be77ed be7a bea7 bead beaded bed bedded bee bee7 bee71e bee71ed beef beefed befa11 befe11 c c00 c001 c001ed c007 c00ed c0110ca7e c0110ca7ed c011a7e c011a7ed c011ec7 c011ec7ab1e c011ec7ed c017 c01a c01d c07 c077ed c07e c0a1 c0a1ed c0a7 c0a7ed c0b c0ba17 c0bb1e c0bb1ed c0bbed c0c0a c0d c0da c0dd1e c0dd1ed c0dded c0de c0ded c0ed c0ffee c107 c1077ed c10d c10dded c1ad c1ea7 c1ef c1ef7 c1ef7ed ca11 ca11ab1e ca11ed ca1f ca7 ca771e ca7b0a7 ca7ca11 ca7ca11ed cab cab00d1e cab1e cab1ed caba1 cabbed caca0 cad cade7 ce11 ce110 ce11ed cede ceded d d0 d00d1e d00d1ed d00dad d011 d011ed d017 d01e d01ed d07 d077ed d07e d07ed d0ab1e d0c d0d0 d0e d0ff d0ffed d[a-f] da1e da7a da7e da7ed dab dabb1e dabb1ed dabbed dad dad0 daf7 de11 de17a de1e7e de1e7ed de1ec7ab1e de7ec7 de7ec7ab1e de7ec7ed dea1 dea17 dead deadb017 deadbea7 deaf deb deb7 deba7ab1e deba7e deba7ed debac1e dec0de dec0ded deca1 decade decaf deed deeded def1a7e def1a7ed def1ec7 def1ec7ed def7 deface defaced defea7 defea7ed defec7 defec7ed defeca7e defeca7ed e e11 e1a7e e1a7ed e1ec7 e1ec7ed e1f e7a ea7 ea7ab1e ebb ebbed ee1 efface effaced effe7e effec7 effec7ed f f001 f001ed f007 f007ba11 f007ed f007fa11 f00d f01d f01ded f0a1 f0a1ed f0b f0bbed f0ca1 f0e f0e7a1 f100d f100ded f10a7 f10a7ed f10e f1a7 f1a77ed f1a7b0a7 f1a7bed f1a7f007 f1a7f007ed f1a7fee7 f1ab f1ea f1ed f1ee f1ee7 f1ee7ed f1eece f1eeced fa fa11 fa7 fa7a1 fa7e fa7ed fab1e fab1ed fac7 facade face face7 face77ed face7ed faced fad fade faded fe11 fe11ed fe17 fe17ed fe771e fe7a fe7a1 fe7ed fea7 feca1 fed fee fee1 fee7 feeb1e feed