The letters in BIOLOGY make 51 words of two letters or more. The longest is BIOLOGY at 7 letters, and the highest-scoring is BIOLOGY at 13 points.
No other single word uses all 7 letters of BIOLOGY. BIOLOGY has 7 letters: 3 vowels and 4 consonants, worth 13 points before any board bonuses.
7-letter words 1
5-letter words 8
bigly11bilgy11boogy11igloo6logoi6looby10oboli7ology9
4-letter words 16
blog7bogy10boil6bolo6boyo9glib7glob7gobo7goby10lobo6logo5logy8obol6oily7olio4yogi8
3-letter words 16
big6bio5bog6boo5boy8gib6gob6goo4goy7lib5lob5log4loo3obi5oil3yob8
2-letter words 10
bi4bo4by7go3li2lo2oi2oo2oy5yo5
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.