challenge

1. A call to engage in a contest, fight, or competition: a challenge to a duel.

2. A claim that a vote is invalid or that a voter is unqualified.

3. A demand for explanation or justification; a calling into question: a challenge to a theory.

4. Immunology The induction or evaluation of an immune response in an organism by administration of a specific antigen to which it has been sensitized.

5. Law A formal objection to the inclusion of a prospective juror in a jury.

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1. To demand as due or deserved .

2. To order to halt and prove identity .

3. To dispute especially as being unjust, invalid, or outmoded .

4. To question formally the legality or legal qualifications of .

5. To confront or defy boldly .

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1. To begin barking upon picking up the scent. Used of hunting dogs.

2. To make or give voice to a challenge.

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1. Immunology To induce or evaluate an immune response in (an organism) by administering a specific antigen to which it has been sensitized.

2. Law To take formal objection to (a prospective juror).

3. To call to engage in a contest, fight, or competition: challenged me to a game of chess.

4. To have due claim to; call for: events that challenge our attention.

5. To invite with defiance; dare: challenged him to contradict her. See Synonyms at defy.

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Top Words by points	Points	Word Game
challenge	15	Scrabble

2 Letters	Scrabble® Points
ae	2
ag	3
ah	5
al	2
an	2
eh	5
el	2
en	2
ha	5
he	5
la	2
na	2
ne	2

3 Letters	Scrabble® Points
ace	5
age	4
ale	3
all	3
ane	3
can	5
cee	5
cel	5
eel	3
ell	3
eng	4
gae	4
gal	4
gan	4
gee	4
gel	4
gen	4
hae	6
hag	7
hen	6
lac	5
lag	4
lah	6
lea	3
lee	3
leg	4
nae	3
nag	4
nah	6
nee	3
neg	4

4 Letters	Scrabble® Points
ache	9
acne	6
agee	5
alec	6
alee	4
cage	7
call	6
cane	6
cell	6
clag	7
clan	6
cleg	7
each	9
eche	9
egal	5
elan	4
gach	10
gaen	5
gale	5
gall	5
gane	5
gene	5
ghee	8
glee	5
glen	5
haen	7
hale	7
hall	7
hang	8
heal	7
heel	7
hell	7
lace	6
lane	4
lang	5
leal	4
lean	4
lech	9

5 Letters	Scrabble® Points
agene	6
aglee	6
allee	5
anele	5
angel	6
angle	6
cella	7
chang	11
chela	10
clang	8
clean	7
eagle	6
glace	8
glean	6
hance	10
hence	10
henge	9
lance	7
lanch	10
leach	10
leech	10
legal	6

6 Letters	Scrabble® Points
achene	11
allege	7
callee	8
cellae	8
change	12
chelae	11
encage	9
enlace	8
glance	9

7 Letters	Scrabble® Points
nacelle	9

9 Letters	Scrabble® Points
challenge	15