|Noun||1.||semi - one of the two competitions in the next to the last round of an elimination tournament|
|2.||semi - a truck consisting of a tractor and trailer together|
|3.||semi - a trailer having wheels only in the rear; the front is supported by the towing vehicle|
|semi - /se'mee/ or /se'mi:/ A spoken abbreviation for semicolon.|
"Commands to grind are prefixed by semi semi star" means that the prefix is ";;*", not 1/4 of a star.