Showing results for "lymphocyte" instead. (You can only search for 1 word at a time unless you use the Storm or Mosaic Rhyme tools)
Or search: leukocyte, leucocyte, lymphoblast
3 Syllables: SUU
imbecile, improvise, simplified, simplifies, simplify, sympathise, sympathize, synthesize

Found 8 words across 1 groupings. Skipped 3 excess words of a similar stem.