The letters in WELCOMING make 203 words of two letters or more. The longest is WELCOMING at 9 letters, and the highest-scoring is WELCOMING at 17 points.
No other single word uses all 9 letters of WELCOMING. WELCOMING has 9 letters: 3 vowels and 6 consonants, worth 17 points before any board bonuses.
9-letter words 1
8-letter words 1
comingle13
7-letter words 5
clewing13cowling13genomic12meowing13mewling13
6-letter words 18
5-letter words 35
celom9clime9cline7cling8clone7clown10coign8colin7conge8eloin5genic8genom8gimel8glime8gnome8golem8incog8ingle6lemon7limen7lingo6logic8login6longe6melic9melon7mince9monie7nicol7oleic7olein5owing9wilco10wince10women10
4-letter words 67
ceil6cine6cion6clem8clew9clog7clon6coil6coin6cole6coli6come8cone6coni6cowl9emic8enol4enow7gien5glen5glim7glom7glow8gone5gown8icon6leno4lice6lien4lime6limn6limo6line4ling5lino4lion4loci6loge5loin4lone4long5lowe7lown7lwei7meno6meow9mewl9mice8mien6mile6milo6mine6moil6mole6mong7mown9nice6noel4noil4nome6ogle5omen6once6wile7wine7wing8wino7
3-letter words 55
cel5cig6cog6col5con5cow8cwm10ego4elm5emo5eng4eon3gel4gem6gen4gie4gin4ice5ion3leg4lei3lie3lin3log4low6meg6mel5men5mew8mic7mig6mil5moc7mog6moi5mol5mon5mow8new6nil3nim5nog4nom5now6oil3ole3one3owe6owl6own6wen6wig7win6woe6won6
2-letter words 21
el2em4en2go3in2li2lm4ln2lo2me4mi4mo4ne2no2oe2oi2om4on2ow5we5wo5
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.