English Style Guide

The -yse form for such words as analyse or paralyse is the only correct spelling in British English
Of course, the Americans use analyze and paralyze. Make sure you stick to one style.

Use -ct - not -x- in connection, reflection, etc.
But note - complexion is one of the few words written with an -x-

Write gram, kilogram, litre, metre (British spelling)

However, use "tonne" not "ton" for the metric tonne, which is 1000 kg. The spelling ton refers to the imperial ton (2240 lb, avoirdupois) and the American short ton, the former unit now being obsolete.

Plural words of foreign orgin. The following is correct:

Singular	Plural
addendum	addenda
apparatus	apparatus or apparatuses
appendix	appendices (books)
	apendixes (anatomy)
bacillus	bacilli
consortium	consortia
criterion	criteria
focus	focuses, focal points, foci (mathematics, science)
formula	formulas (politics), formulae (science)
forum	forums or fora

Confusion between English words

Verb/adjective/noun	Noun only
dependent	dependant
license	licence
maintain	maintenance
practise	practice
principal	principle
stationary	stationery

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