Apologies and all rather confusing.
So a vegetarian does not eat dead things but a vegetarian thatdecides to deviate from the norm and eat some fish is called a pesco-vegetarian. The word pesco being derived from the Latin word for "fish". Pesco-vegetarians are a type of semi-vegetarian who also may consume other forms of seafood like shrimp and scallops but no land-animal derived food like chicken or beef. Vegetarians also eat seeds and nuts.
A vegan would be someone who omits all types of animal products from their diet like eggs and milk and products made from animals aka leather.
Healthline are not a bad go to for advice and this is what they have to say
https://www.healthline.com/nutrition/vegan-vs-vegetarian#section4
And a big well done Karen as 9lb is a nice drop of weight to shed.