inauguration Definition

inaugurate
verb inaugurated, inaugurating

1. To place (a person) in office with a formal ceremony. Compare induct.

Thesaurus: install, ordain, christen, commission, consecrate, dedicate, enthrone, introduce, invest, usher in.
2. To mark the beginning of (some activity) with a formal ceremony or dedication, etc.

Thesaurus: launch, debut, begin, start off, commence, set up.
3. To mark the opening of (a new building or service), especially by being the first person to try it out.

Derivative: inauguration
noun

A formal ceremony in which someone is placed in office or an activity is begun
Thesaurus: induction, initiation, consecration, installation, institution; startup, commissioning, beginning, commencement.

Derivative: inaugurator
noun

Etymology: 17c: from Latin inaugurare, literally ‘to take omens'; see augur.