Nosher and Omnivore

Nosher noun - Someone who eats lightly or eats snacks between meals.

Omnivore and nosher are semantically related In some cases you can use "Omnivore" instead a noun "Nosher".

Omnivore noun - An animal that feeds on both animal and vegetable substances.

Nosher and omnivore are semantically related in one who consumes all foods topic. You can use "Nosher" instead a noun "Omnivore".