“Odors” or “Odours”—What's the difference?

Usage by country

Where each spelling is used

Of the 12 countries below, 6 prefer “odors” and 3 prefer “odours”. Usage levels are out of 100; the more common spelling in each country is in bold.

Usage level out of 100 (if available).
Country	odors	odours	Preference
United States	99	1	“odors”
United Kingdom	44	56	“odours”
India	57	43	“odors”
Philippines	95	5	“odors”
Canada	71	29	“odors”
Australia	45	55	“odours”
Liberia	0	0	Not enough data
Ireland	47	53	“odours”
New Zealand	51	49	“odors”
Jamaica	100	0	“odors”
Trinidad & Tobago	0	0	Not enough data
Guyana	0	0	Not enough data

Usage

Real sentences for each spelling. Hover an example to copy it.

…which allowed people to smell odors and aromas from the film…
They use terrestrial odors as cues in migration as…
…on a back ward, the odors from wards crammed with untidy…
…amygdala are used to pair odors to names and recognize odor…
The odors of female L. figueresi are…
…in ambient humidity, temperature, and odors.
…voltage-gated calcium channel opening by odors) and G protein stimulation (caused…
…to inoculate people with certain odors in order to prevent the…
…as an authority on environmental odors.
…surrounding the tea and removes odors from the aging tea.

…the corpse by sniffing the odours emanating from the tube.
…filtered to remove dust and odours, and released into the space…
The Gastronomic Value of Odours (1886)
…pollinators, that are attracted to odours resembling dung or rotting meat,…
…locate dung by detecting the odours produced by its volatile constituents.
…with colours and sounds and odours all directly affecting the senses,…
…drained and reeking with foul odours, thickly populated and miserably housed.’…
…oils each have characteristic woody odours which may change somewhat in…
…east wind—whose "living hues and odours" (12) evoke a strong contrast…
…redolent of all the heady odours of the dark Qualactin Zones.

Examples are Wikipedia snippets under the CC ShareAlike 3.0 license.

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