oz
Abbreviation with 2 meanings
| Stands for | Ounce (avoirdupois) |
|---|---|
| Meanings | 2 |
| Categories | Units & Measurements, Transportation & Travel |
| Also written | OZ |
oz has two meanings. It stands for Ounce (avoirdupois) (US customary and imperial unit) or Asiana Airlines (airline code).
Meanings of oz at a glance
| # | oz stands for | Context |
|---|---|---|
| 1 | Ounce (avoirdupois) | Units & Measurements › US Customary and Imperial Unit |
| 2 | Asiana Airlines | Transportation & Travel › Airline Code |
1. Ounce (avoirdupois)
Units & Measurements · US Customary and Imperial Unit Abbreviations
The everyday unit of weight in the US system, one sixteenth of a pound, exactly 28.349523125 grams. Packaged food, postage, letters and produce are weighed in ounces.
Example: First-class letters up to 1 oz go for the base stamp price; each extra ounce costs more.
The abbreviation oz comes from the old Italian onza, which descends from Latin uncia, one twelfth. Gold, silver and other precious metals use the heavier troy ounce, about 31.1 g, written ozt. Packaging distinguishes net weight in oz from volume in fl oz, and many labels also give grams.
2. Asiana Airlines (OZ)
Transportation & Travel · Airline Code Abbreviations
South Korea's second airline, based at Incheon and a member of Star Alliance, being integrated into Korean Air after its 2024 acquisition.
Example: OZ 202 from Los Angeles to Seoul is codeshared with United.
ICAO code AAR; callsign "Asiana." Founded in 1988. Asiana Flight 214 crashed while landing at San Francisco in 2013, killing three passengers. Once the integration is complete, the Asiana brand is expected to disappear into Korean Air.
Related abbreviations
More US customary and imperial unit abbreviations
- LF – Linear foot
- mi – Mile
- mil – Mil (thousandth of an inch)
- NM – Nautical mile
- ozt – Troy ounce
- pk – Peck
- pt – Pint
- qt – Quart
See all 43 US customary and imperial unit abbreviations →