Pre-order or preorder?
pre-order is an adjective meaning “Alternative form of preorder”; preorder is an adjective meaning “Such that, recursively, the root is visited before the left and right subtrees”. pre-order is written with a hyphen and preorder as one word; they are used differently.
What is the difference between pre-order and preorder?
| pre-order | preorder | |
|---|---|---|
| Part of speech | adjective, verb, noun | verb, noun, adjective |
| Meaning | Alternative form of preorder | To order (goods or services) in advance, before they are available To sort or arrange beforehand An order for goods or services placed in advance |
| Example | none recorded | Preorder now at website.com! |
| Pronunciation | not recorded | /pɹiːˈɔːdə/ /ˈpɹiˌoɹdɚ/ /ˌpɹiˈoɹdɚ/ |
| In writing | not counted (the list counts single words) | 1.1 times per million words |
Sources: pre-order and preorder in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of pre-order and preorder
pre-order
- 1
Alternative form of preorder
- 2
Alternative form of preorder
- 3
Alternative form of preorder
preorder
- 1
To order (goods or services) in advance, before they are available
Preorder now at website.com!
- 2
An order for goods or services placed in advance
available for preorder
- 3
Such that, recursively, the root is visited before the left and right subtrees
- 4
To sort or arrange beforehand
- 5
A binary relation that is reflexive and transitive
The relation of logical implication over sentences is an example of a preorder
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, pre-order or preorder?
pre-order is a phrase, which the list of single words does not count; preorder 1.1 times per million words.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).