There are 54 words hidden in the letters of SECURE, from 6 two-letter words up to CEREUS (6 letters). For points, CEREUS is best at 8.
SECURE is an anagram of RESCUE, RECUSE, CEREUS and CERUSE, using all 6 letters. SECURE has 6 letters: 3 vowels and 3 consonants, worth 8 points before any board bonuses.
Anagrams of SECURE 4
rescue8recuse8cereus8ceruse8
6-letter words 5
5-letter words 9
ceres7crees7cruse7cures7curse7ecrus7reuse5scree7sucre7
4-letter words 18
cees6cere6cree6crus6cues6cure6curs6ecru6ecus6recs6rees4rues4ruse4seer4sere4suer4sure4user4
3-letter words 16
cee5cru5cue5cur5ecu5ere3ers3rec5ree3res3rue3sec5see3ser3sue3use3
2-letter words 6
cs4er2es2re2rs2us2
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.