The word is in the Wiktionary

5 short excerpts of Wiktionnary (A collaborative project to produce a free-content dictionary.)

— English words —

• open-book adj. (Education) Referring to exams in which external resources such as textbooks, glossaries, study notes…
• open␣book n. (Idiomatic) Something of which salient aspects are obvious or easily interpreted.
• open␣book n. (Idiomatic) A person who through naivete responds candidly to questions or openly displays their emotions…
• open␣book n. (Mathematics, topology) An open book decomposition.
• open␣book n. (Climbing) An inside angle in the rock.

43 English words from 5 English definitions

angle are aspects book candidly Climbing decomposition displays easily Education emotions exams external glossaries Idiomatic inside interpreted Mathematics naivete notes obvious open open␣book open␣book␣decomposition openly person questions Referring resources responds rock salient Something study such such␣as textbooks the their through topology which who

4 suffixes (New words found by adding one or more letters at the end of the word.)

open␣books open-book␣contract open-book␣contracts open␣book␣decomposition

One prefix (New word found by adding one or more letters in front of the word.)

read␣like␣an␣open␣book

11 words-in-word (Words found as is inside the word. Minimum size 3 letters.)

boo Boo book Book ook ope 'ope open pen Pen PEN

10 words-in-word RTL (Words found written from right to left, inside the word. Minimum size 3 letters.)

Epo EPO Koo Koob nep Nep NEP nepo OoB OOB

3 anagrams found with an extra letter (New words formed with all the letters from the word and an extra letter.)

open␣books phonebook phone␣book

Recommended websites

• Visit 1Word.ws - the word OPENBOOK is not a valid scrabble word.
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