first vs low gear

first

• The first gear of an engine. 

• first base 

• A first-edition copy of some publication. 

• A fraction whose (integer) denominator ends in the digit 1. 

• Something that has never happened before; a new occurrence. 

• A first-class honours degree. 

• The person or thing in the first position. 

• For the first time. 

• Before anything else; firstly. 

• Now. 

• Preceding all others of a series or kind; the ordinal of one; earliest. 

• Of or belonging to a first family. 

• Most eminent or exalted; most excellent; chief; highest. 

low gear

• One of the lower gears available from a gearbox, typically in a motor vehicle or cycle. 

• The lowest gear available from a gearbox, typically in a motor vehicle or cycle.