There are 60 words hidden in the letters of REQUIRING, from 8 two-letter words up to REQUIRING (9 letters). For points, REQUIRING is best at 19.
No other single word uses all 9 letters of REQUIRING. REQUIRING has 9 letters: 4 vowels and 5 consonants, worth 19 points before any board bonuses.
9-letter words 1
8-letter words 1
inquirer17
7-letter words 2
inquire16quiring17
6-letter words 4
erring7requin15ringer7ruiner6
5-letter words 12
genii6inure5iring6quern14quire14reign6renig6rerig6rerun5ruing6unrig6urger6
4-letter words 13
genu5gien5girn5grin5grue5quin13rein4ring5ruer4ruin4rune4rung5urge5
3-letter words 19
eng4erg4ern3err3gen4gie4gin4gnu4gre4ire3reg4rei3rig4rin3rue3rug4run3uni3urn3
2-letter words 8
en2er2in2ne2nu2qi11re2un2
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.