half-hourly
/'hɑ:f'auəli/
Học thuậtThân thiện
Definition
Adjective:
- Occurring every thirty minutes: Describes something that happens or is scheduled at intervals of half an hour.
Adverb:
- Every thirty minutes, every half hour: Indicates the frequency with which an action occurs, repeating at 30-minute intervals.
Usage Examples
Adjective:
- The factory has half-hourly safety checks. (The safety checks are scheduled to occur every 30 minutes.)
- We receive half-hourly updates on the storm's progress. (Updates are provided every half hour.)
Adverb:
- The buses on this route run half-hourly. (Buses depart every 30 minutes.)
- Data is collected half-hourly from the weather station. (The collection happens every half hour.)
Advanced Usage
- "on a half-hourly basis": A more formal phrase meaning "every half hour".
- Reports are generated on a half-hourly basis. (Reports are produced every 30 minutes.)
Variants and Related Words
- Hourly (adj/adv): Occurring or done every hour.
- The news is broadcast hourly.
- Half-hour (n): A period of thirty minutes.
- The meeting was delayed by a half-hour.
Synonyms
- Every thirty minutes
- Every half hour
- Semi-hourly (less common)
Notes on Meaning
- The word half-hourly specifically denotes a regular, repeating interval of 30 minutes. It is commonly used for schedules, transportation, data reporting, and broadcasts.
Adverb
- every thirty minutes, every half hour