Foremost | Mean of foremost in English Dictionary

/ˈfoɚˌmoʊst/

• most important
1. He is the foremost [=leading] authority/scholar on the American Civil War period.
2. Safety is their foremost [=primary] concern.
• in the first or most important position
1. The building's designers put safety foremost. [=(more commonly) first]
• at the most basic or important level
1. Though he has many other interests, he is foremost [=primarily] an authority on the American Civil War period.