Meaning & Definition of word "Semi"

Semi

/ˈsɛm.i/

noun:

  • 1. A semi-truck or a combination of a tractor and a trailer.
    • Example: The semi delivered goods to the warehouse early in the morning.
  • 2. A semi-final event in a competition, typically preceding the final.
    • Example: After winning the semi, she advanced to the finals.

adjective:

  • 1. Partially or to a certain extent; not fully.
    • Example: The semi-final round of the tournament was very competitive.
  • 2. Having a structure that is partially or nearly complete.
    • Example: He bought a semi-detached house in the suburbs.
  • 3. Involving two halves or a part of something larger.
    • Example: They used a semi-automatic weapon for the demonstration.

Etymology

From Latin 'semi-', meaning half.

Common Phrases and Expressions

semi-final:

The round of a competition preceding the final.

semi-automatic:

Referring to a firearm that automatically reloads after each shot but requires a trigger pull for each shot.

semi-circle:

A geometric shape that is half of a circle.

Related Words

semiconductor:

A material that has conductivity between conductors and insulators, commonly used in electronics.

semisphere:

Half a sphere.

semidarkness:

A state of being partially dark.

Slang Meanings of semi

Meaning: Abbreviation for 'seminal', often used in academic contexts.

Example Sentence: His paper was considered semi in the field of economics.

Meaning: Informal reference to a semi-truck or large freight vehicle.

Example Sentence: Look at that semi passing us on the highway.