“100 metre race. (US)”
Spelling Entry 753 / 1011 60-second read
Metre vs. Meter
US: -ER. UK: -RE.
The comparisoni
“100 meter race. (US)”
The ruleii
¶
US: METER. UK: METRE.
In US, "meter" also means measuring device (parking meter). UK distinguishes: METER (device) vs METRE (unit).
Memory aidiii
Remember it like this
US = ER."