3 letters

Jen

4 letters

Jena

5 letters

jenny ∙ Jenin jenna

6 letters

jennie jennet ∙ Jennys jenoar Jenner Jenné Jensen jenkin jenine jenson

7 letters

jennies ∙ jennier Jentele jennets ∙ Jenkins

8 letters

jennifer Jennings jenequen

9 letters

jenneting ∙ Jennygate jennerize

10 letters

jennetings ∙ jentacular Jentaculum Jendrassik

13 letters

Jennerization

Words with a ∙ are valid Scrabble words (SOWPODS word list)