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Index A
- a
- a- (1)
- a- (2)
- AB
- ab-
- abbreviations: acronyms and initialisms
- abbreviations: ampersand
- abbreviations: business terms and symbols
- abbreviations: capitals and hyphens
- abbreviations: corporate names
- abbreviations: days and months
- abbreviations: degrees and distinctions
- abbreviations: general guidelines
- abbreviations: geographical names
- abbreviations: imperial system
- abbreviations: International System of Units (SI)
- abbreviations: latitude and longitude
- abbreviations: military abbreviations
- abbreviations: monetary units
- abbreviations: netspeak
- abbreviations: number symbols
- abbreviations: parts of a book or document
- abbreviations: periods
- abbreviations: plurals
- abbreviations: scientific and technical terms
- abbreviations: time zones
- abbreviations: titles with personal names
- abeyance
- abide
- abide by
- about
- above-mentioned
- abreast
- absolutely essential
- absolute phrases
- abstain
- abstain from
- abstain in
- abstain on
- accede to
- accordance
- according to
- according to our records
- accord (of one’s own)
- accountable for
- accountable to
- accuracy
- accurate
- acquiesce in
- acquiesce to
- acquiesce with
- action verbs
- active voice
- act on
- act upon
- acu-
- addresses: official languages
- addresses on envelopes and parcels (Linguistic recommendation from the Translation Bureau)
- adequate amount of
- adequate number of
- adjective
- adjective clause
- adjective comparison
- ADT
- adverb clause
- adverb comparison
- adverbs
- adverse
- adverse to
- advice
- advise
- aero-
- a few
- affect
- Afghan
- afghani
- aforementioned
- Afro-
- after
- again
- ageing
- agenda
- agendas
- aggravate
- aging
- agreeable
- agree on
- agree to
- agree with
- agro-
- Alberta
- Albertan
- alliteration
- allo-
- all over again
- allow for
- allow to
- all ready
- all right
- all-time record
- all together
- allude
- allusion
- almost without exception
- along these lines
- already
- alright
- Alta.
- alternate(ly)
- alternative(ly)
- altogether
- alumna
- alumnus
- a.m.
- a mari usque ad mare
- ambi-
- American dollar (symbol) (Linguistic recommendation from the Translation Bureau)
- Americo-
- amount
- an-
- an
- an abundance of
- analyse
- analyze
- and
- and/or
- and so as a result
- Anglo-
- Anglophone
- anniversary
- answer for
- answer to
- ante-
- anti-
- anticipate
- anxious about
- anxious at
- anxious for
- anxious to
- any
- apostrophe: contractions
- apostrophe: plurals
- apostrophe: possession
- apparent
- appear
- appositives
- appraise
- apprise
- approval of
- approval to
- approve
- approve of
- approximately
- approximately about
- apt
- aqua-
- aqui-
- Arabo-
- arch-
- Armeno-
- Armistice Day
- around (1)
- around (2)
- as a consequence of
- as a matter of fact
- as a result of
- as a result of the fact that
- ascend
- ascent
- as far as
- aspire after
- aspire to
- as regards
- assent
- associate to
- associate with
- as soon as
- assume
- assure
- AST
- asterisk at end of sentence
- astro-
- as well as
- Atlantic Daylight Time
- Atlantic provinces
- Atlantic Standard Time
- attention
- attentive
- attentiveness
- at that point in time
- at the present time
- at this point in time
- at variance among
- at variance with
- audit and derived terms (Linguistic recommendation from the Translation Bureau)
- Austro-
- authentic
- autumn
- auxiliary verbs
- avenge
- averse to
- avocation
- awards
- aware of
- Azerbaijani
- Azeri
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and/or
Most authorities recommend avoiding the expression and/or.
When used with only two options, and/or means that the possible choices include either one or the other of the two options, or both of them together (either A or B, or both).
- On Saturday, we can go to dinner and/or to a play.
[We can go to dinner or to a play, or both.]
However, and/or is unclear when used with three or more options. In addition, its use in legal writing has created serious problems in interpretation. Many also find it unattractive. For these reasons, we recommend that you avoid it by using one of the methods below.
Most situations can be expressed using and or or separately.
- The volleyball team is made up of women and men.
- The French language courses will be held in Ottawa or Hull.
When both meanings are necessary, write or between the two choices, followed by the phrase or both.
- Would you like to go hiking or biking, or both?
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