The word is in the Wiktionary

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

— English words —

• concave adj. Curved like the inner surface of a sphere or bowl.
• concave adj. (Geometry, not comparable, of a polygon) not convex; having at least one internal angle greater than 180 degrees.
• concave adj. (Functional analysis, not comparable, of a real-valued function on the reals) satisfying the property…
• concave adj. Hollow; empty.
• concave n. A concave surface or curve.
• concave n. The vault of the sky.
• concave n. One of the celestial spheres of the Ptolemaic or geocentric model of the world.
• concave n. (Manufacturing) An element of a curved grid used to separate desirable material from tailings or chaff…
• concave n. (Surfing) An indentation running along the base of a surfboard, intended to increase lift.
• concave n. (Skateboarding) An indented area on the top of a skateboard, providing a position for foot placement…
• concave n. (Gambling) A playing card made concave for use in cheating.
• concave v. To render concave, or increase the degree of concavity.

— English word, defined in French —

• concave adj. Concave.

— English word, defined in Spanish —

• concave adj. Cóncavo.

— English word, defined in Italian —

• concave agg. Concavo.

— In French —

• concave adj. Qui présente une surface en creux.
• concave n.m. Caractère concave, forme concave.
• concave v. Première personne du singulier du présent de l’indicatif de concaver.
• concave v. Troisième personne du singulier du présent de l’indicatif de concaver.
• concave v. Première personne du singulier du présent du subjonctif de concaver.
• concave v. Troisième personne du singulier du présent du subjonctif de concaver.
• concave v. Deuxième personne du singulier de l’impératif présent de concaver.
• concavé v. Participe passé masculin singulier de concaver.

— In Italian —

• concave agg. Femminile plurale di concavo.

90 English words from 12 English definitions

along analysis angle area at␣least base bowl card celestial celestial␣spheres chaff cheating comparable concave concavity convex curve curved degree degrees desirable element empty foot for from function Functional Functional␣analysis Gambling geocentric Geometry greater greater␣than grid having Hollow increase indentation indented inner intended internal internal␣angle least lift like made Manufacturing material model not of␣a of␣the␣world one on␣the placement playing playing␣card polygon position property providing Ptolemaic real reals real␣valued render running running␣along satisfying separate skateboard Skateboarding sky sphere spheres surface surfboard Surfing tailings than the top use used used␣to valued vault world

8 English words from 12 foreign definitions

concave concaver en␣creux forme masculin passé Première surface

23 foreign words from 12 foreign definitions

Caractère concavo creux Deuxième Deuxième␣personne Femminile impératif impératif␣présent indicatif Participe Participe␣passé personne plurale Première␣personne présent présent␣du␣subjonctif présente Qui singulier subjonctif Troisième Troisième␣personne une

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

concaved concaver concaves concavely concavers concaveness concave␣envelope concave␣function concave␣envelopes concave␣functions

10 prefixes (New words found by adding one or more letters in front of the word.)

biconcave nonconcave proconcave subconcave planoconcave quasiconcave double␣concave pseudoconcave concavoconcave convexoconcave

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

ave 'ave ave. Ave. Cav. cave Cave con Con CON -con con- conc. NCA onc ONC ONCA onça

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

CNO eva Eva EVA eva' evac NOC vac VAC Vác Vāc -vac

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

Chovanec concaved concaver concaves conceave conclave

One anagram found minus a letter (New word formed with all the letters from the word minus a letter.)

Canove

2 epenthesis (New words found when adding only one letter.)

conceave conclave

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