UnscrambleTheWord.copreorder
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Is preorder a Scrabble word?
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- Scrabble US/Canada (OTCWL) Yes
- Scrabble UK (SOWPODS) Yes
- Wordle No
- Words With Friends Yes
Scrabble US/Canada (OTCWL) 
Wordle 
Words With Friends What is the meaning of preorder?
Definition
verb (English)
1. (transitive) To order (goods or services) in advance, before they are available.transitive
2. (transitive) To sort or arrange beforehand.transitive
noun (English)
1. (set theory, order theory) A binary relation that is reflexive and transitive.Examples: "The relation of logical implication over sentences is an example of a preorder."; "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."
adj (English)
1. (computing theory, of a traversal of a tree) Such that, recursively, the root is visited before the left and right subtrees.Examples: "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."; "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."not-comparable
Definition source: Wiktionary