Best and First

Best adjective - (superlative of `good') having the most positive qualities.

First is a synonym for best in finest topic. In some cases you can use "First" instead the word "Best" as an adjective or a noun, when it comes to topics like comparison, most outstanding thing in class, most excellent.

First adjective - Ranking above all others.

Best is a synonym for first in top topic. You can use "Best" instead the word "First" as an adjective or a noun, if it concerns topics such as comparison.

Nearby Word: firstly