Primary engines Synonyms

Primary replaced

basic engines

original engines

major engines

primitive engines

rudimentary engines

early engines

simple engines

superior engines

Definitions for Primary

(adjective) coming before all others in importance
(adjective) done or working without something else coming in between
(adjective) highest in rank or authority

PE abbreviation

PE is an abbreviation for Primary Engines

What does PE stand for?

PE stands for "Primary Engines"