Definitions by GravityManipulationUnit

12:1 

A ratio equal to 12:1, 24:2, 36:3, 48:4, 60:5, and 72:6
Not to be confused with 12:01, 121, or 12-1

There is twelve roses for every 1 dandelion. (A 12:1 ratio)

12:1 by GravityManipulationUnit June 7, 2020

12:01 AM 

A time that occurs one minute after 12:00 AM. Represented as 00:01 on a twelve-hour clock.

I went to sleep at 12:01 AM.

12:01 AM by GravityManipulationUnit June 7, 2020

12:01 PM 

A time that occurs one minute after 12:00 PM. Represented as 12:01 on a twenty-four-hour clock.

I woke up at 12:01 PM.

12:01 PM by GravityManipulationUnit June 7, 2020

12:01

Either referring to 12:01 PM or 12:01 AM. Also represents 12:01 PM on a twelve-hour clock.
Not to be confused with the ratio 12:1

Usage 1: I fell asleep at 12:01 AM
Usage 2: I woke up at 12:01 PM.

12:01 by GravityManipulationUnit June 7, 2020

twenty-four-hour clock 

A time system based on the representation of time on a twenty four hour based system

Twenty-four-hour clock systems are 00:01 through 24:00

twenty-four-hour clock by GravityManipulationUnit June 7, 2020

121 

A number/integer between 120 and 122. (See also -121)

I have 121 (random plural noun).

121 by GravityManipulationUnit June 7, 2020

12-1 

In scoring, used to represent a team with 12 score and a team with 1 score. (See 12 to 1 or Twelve to one.
An equation, equal to 11.

Our team is losing 12-1.
12-1=11

12-1 by GravityManipulationUnit June 7, 2020