connie
n. countable C2 Proficiency US //ˈkɔni// con·nie Archaic Informal
n. a person who is very experienced and skilled at a particular job. You use this word to show respect for someone who has done their work for a long time.
n. an experienced and skilled practitioner of a trade or profession. Informal in register; typically used to express admiration for professional competence.
She is a real connie in the kitchen.
The new pilot looked to the senior captain, a true connie, for guidance during the storm.
In an industry often dominated by theory, the old mechanic remained a respected connie, valued for his intuitive understanding of the engine's quirks.
Diminutives + -ie.