“Optimizing” or “Optimising”—What's the difference?

Usage by country

Where each spelling is used

Of the 12 countries below, 7 prefer “optimizing” and 3 prefer “optimising”. Usage levels are out of 100; the more common spelling in each country is in bold.

Usage level out of 100 (if available).
Country	optimizing	optimising	Preference
United States	97	3	“optimizing”
United Kingdom	36	64	“optimising”
India	65	35	“optimizing”
Philippines	97	3	“optimizing”
Canada	93	7	“optimizing”
Australia	38	62	“optimising”
Liberia	0	0	Not enough data
Ireland	51	49	“optimizing”
New Zealand	42	58	“optimising”
Jamaica	100	0	“optimizing”
Trinidad & Tobago	100	0	“optimizing”
Guyana	0	0	Not enough data

Usage

Examples in context

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

“optimizing”

…is an automatic parallelizing and optimizing compiler (workbench) for C and…
…code, by allowing runtime code optimizing on a per-object basis.
The special case of optimizing egalitarian welfare with additive utilities…
…with non-player characters, reviewing and optimizing the Skills in their Arsenal…
…the underlying mathematics relies on optimizing stochastic processes rather than on…
Storage resource management, optimizing the efficiency and speed of…
…as small as possible by optimizing both the design and implementation.
…much effort is spent on optimizing the different schemes.
…that is, the problem of optimizing (minimizing or maximizing) a quadratic…
…most if not all modern optimizing compilers.

“optimising”

…well as for managing and optimising customer experience for web and…
…man-as-species and were concerned with optimising the state of life, with…
…risk of water inspiration, while optimising water removal.
…response, as an aid to optimising and individualising the clinical management…
…the TF108 is geared towards optimising the entire package".
…reducing flight loads, partly from optimising the fly-by-wire control laws.
"Optimising worked example instruction: different ways…
Loop nest optimization, method for optimising source code
Best practice for optimising a sitemap index for search…
…an intricate process that involves optimising floor plan, décor and atmospherics…

Examples are Wikipedia snippets under the CC ShareAlike 3.0 license.

Too much to remember?

Looking for a tool that handles this for you wherever you write?

Install Sapling Try the grammar checker