In general, this manual recommends American English to be used consistently for all documents and correspondence, as opposed to British English. The following are a few examples of the difference between the two. A recommended reference for spelling is the Merriam-Webster Dictionary.

“–ize” vs. “–ise”
Instead of “organise,” “organisation,” and “organising,” use, “organize,” “organization,” and “organizing.”

The spelling of proper nouns are retained: Organisation for Economic Co-operation and Development.

“–our” vs. “–or”
Use “labor,” “favor,” “humor,” “favorite,” and “neighbor” instead of their UK English spelling counterparts: “labour,” “favour,” “humour,” “favourite,” and “neighbour.”

“–er” vs. “–re”
Use “center,” “fiber,” and “meter,” intead of “centre,” “fibre,” or “metre.”

List of examples:

U.S. (preferred )

UK

e– vs. ae–
anemia anaemia
anesthesia anaesthesia
encyclopedia encyclopaedia
etiology aetiology
gynecology gynaecology
hemoglobin haemoglobin
hemophilia haemophilia
leukemia leukaemia
pediatric paediatric
o– vs. oe–
ameba amoeba
diarrhea diarrhoea
dyspnea dyspnoea
edema oedema
esophagus oesophagus
estrogen oestrogen
maneuver manoevre
–led vs. –lled/–ling vs. –lling
labeling labelling
modeled modelled
channeling channelling
–or vs. –our
behavior behaviour
Color colour
Favor favour
favorite favourite
flavor flavour
harbor harbour
Honor honour
Humor humour
labor labour
neighbor neighbour
rumor rumour
tumor tumour
–ic vs. –ical
anatomic anatomical
biologic biological
geographic geographical
immunologic immunological
–er vs. –re
caliber calibre
center centre
fiber fibre
liter litre
luster lustre
meter metre
specter spectre
theater theatre
titer titre
–yze vs. –yse
analyze analyse
catalyze catalyse
dialyze dialyse
hydrolyze hydrolyse
paralyze paralyse

 

Z spellings S spellings
agonize advise (verb)
civilize arise
colonize chastise
criticize circumcise
emphasize concise
equalize despise
familiarize devise
finalize excise
generalize exercise
globalize expertise
hypothesize franchise
metabolize improvise
minimize incise
pasteurize revise
realize supervise
recognize surmise
stabilize surprise
standardize televise
summarize treatise

 

Other examples
aging ageing
alternate alternative
aluminum aluminium
among amongst
analog analogue
catalog catalogue
defense defence
disk disc
dispatch despatch
license licence
mold mould
offense offence
orient orientate
practice practise
pretense pretence
program programme
quantitate quantify
skillful skilful

CONFUSING WORDS AND PHRASES

On 
etc and et cetera
As much as possible, use etc.

On thru and through
We are inclined to using through.

On advise and advice
Advise is a verb, which is to give recommendation. Advice is the recommendation given.

On despite and in spite
Most references consider both terms to be of the same function. For brevity, use despite (p. 227, The Chicago Style Manual: 16th Edition). The common error is when writers add of after despiteDespite of is incorrect. On the other hand, in spite should be followed by of.

On on behalf of and in behalf of
The phrases differ. In behalf means “for the benefit of” or “in the interest of.” On behalf means “in place of,” “as a substitute of,” or “as an agent of.”

e.g.
Speaking on behalf of the entire crew, I am demanding that we acquire a better sanitation service.

My brother paid for the repairs in my behalf.

On regard/s and toward/s
Omit the s in towards. Never say with regards; it is only used for complementary closes of letters. Omit the s. Regarding, in regard to, and regards are preferred to in regards to.

e-mail versus email
This guide recommends the use of “email,” without the hyphen, which is the official spelling in the Merriam-Webster 11th Collegiate Dictionary, instead of “e-mail.”

Web site versus website
“Website” is preferred.

Among/while versus amongst/whilst
For consistency with the use of the U.S. English spelling, this guide recommends using among and while instead of amongst and whilst.


WORDS WITH THE SAME SINGULAR AND PLURAL FORMS
The following are examples of words that have the same singular and plural forms.

Singular

Plural

fish

fish

evidence

(pieces of) evidence

furniture

(pieces of) furniture

aircraft

aircraft

news

news

species

species

< Previous Chapter

The PCDSPO Style Guide

Next Chapter >