Meaning

(transitive) To order (goods or services) in advance, before they are available..

Definitions by Sense

1. (transitive) To order (goods or services) in advance, before they are available.
2. (transitive) To sort or arrange beforehand.
3. An order for goods or services placed in advance.
4. (set theory, order theory) A binary relation that is reflexive and transitive.
5. (computing theory, of a traversal of a tree) Such that, recursively, the root is visited before the left and right subtrees.

Example Sentences

The relation of logical implication over sentences is an example of a preorder.

2000, Jean-Charles Pomerol, Sergio Barba-Romero, Multicriterion Decision in Management: Principles and Practice, Springer, Softcover, page 58, It can easily be verified that the above relation is a preorder, i.e. that it is reflexive and transitive.

Example 436 For each set A, the relation #92;subseteq is a preorder on #92;mathcal#123;P#125;(A).

Let us first compare S#95;1, S#95;2 and S#95;3 w.r.t. the partial preorder #92;succeq.

2011, Ananda Rao Akepogu, Radhika Raju Palagiri, Data Structures and Algorithms Using C++, Pearson Education India, page 9.16, The preorder traversal visits a node first after which it traverses its left subtree and then traverses its right subtree.

Now, the preorder traversal of a tree can be constructed from the preorder traversals of the subtrees rooted at the children of the root of the tree.

In the program given above, tree is constructed and is traversed in inorder, preorder and postorder traversal.

Word Forms

• preorders
• preordering
• preordered

Synonyms for pre order

Related Words

When Should You Use Pre order?

Use pre order when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.

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