semis

Semis is a plural form used in several different domains, and its meaning depends on context. In transportation and logistics, semis is commonly short for semi-trailer or semi-truck, referring to a tractor-trailer combination used for freight. A tractor unit pulls a detachable semi-trailer, and the setup is a standard configuration for long-haul shipping. Depending on regional usage, semis may refer to multiple semi-trailers or to a fleet of semi-trucks.

In electronics, semis is informal shorthand for semiconductors or semiconductor devices, such as diodes, transistors, and integrated circuits. The term is widely used in industry discussions and casual speech when referring collectively to the semiconductor components that make up electronic circuits.

In sports and tournament contexts, semis is an informal abbreviation for semifinals, the round of competition that determines which teams or players advance to the final. The term appears in schedules, summaries, and media coverage, particularly in informal reporting or fan discourse.