noun

inauguration

ih-naw-gyuh-RAY-shun/ɪˌnɔːɡjəˈreɪʃn/

A formal beginning that puts something into operation.

The mayor's inauguration marks the formal start of her term.

New mayor raises hand taking oath before diverse citizens.

Etymology

inLatinin, on

+augurLatintake omens, predict

+ationLatinact or process

The omens root connects this noun with consecration or installation, presumably originally under favorable signs. That ritual setting explains its use for a ceremony marking an official beginning.

In context

San Francisco Public Library59:49

in January was the inauguration and Harvey and Carol Ruth silver who also had won for supervisor decided to have an inaugural ceremony on the steps of City Hall

Harvey Milk: A Personal View by Photographer Dan Nicoletta

More examples

The president takes the oath of office at the inauguration.
City leaders gather for the inauguration of the new library.
The university celebrates the inauguration of its scholarship program.

Forms

inauguration · inaugurations

inaugurate verb — To formally begin or install in office.

inaugural adjective — Marking a formal beginning or installation.

Similar words

installation: Emphasizes formally placing someone in an official position.
opening: Usually marks a facility or event becoming available to people.
launch: Emphasizes starting a project or program, not necessarily ceremonially.