Semihourly

adj, adv

adj, adv ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Half-hourly: occurring every thirty minutes. not-comparable

    "The warship rang its semihourly bell, announcing it was now half past 10 o'clock."

  2. 2
    Roughly (but not exactly) hourly: occurring around every sixty minutes. not-comparable
Adverb
  1. 1
    Half-hourly: at intervals of 30 minutes. not-comparable

    "Samples were collected semihourly (on the hour and half hour) throughout the study."

  2. 2
    Roughly (but not exactly) hourly: at intervals of around 60 minutes. not-comparable

Synonyms

All synonyms
half hourlyhalf-hourlyhalf-hourly

Example

More examples

"The warship rang its semihourly bell, announcing it was now half past 10 o'clock."

Etymology

From semi- + hourly.

Related phrases

half hourly

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.