tart

1 tart /ˈtɑɚt/ noun
plural tarts
1 tart
/ˈtɑɚt/
noun
plural tarts
Britannica Dictionary definition of TART
[count]
1 
: an open pie that usually has a sweet filling (such as fruit or custard)
2 
informal + disapproving
a  : a woman who wears very sexy clothing and has sex with many men
b  : prostitute
2 tart /ˈtɑɚt/ adjective
tarter; tartest
2 tart
/ˈtɑɚt/
adjective
tarter; tartest
Britannica Dictionary definition of TART
[also more tart; most tart]
1 
: having a sharp or sour taste
2 
: having a sharp and unkind quality

— tartly

adverb

— tartness

noun [noncount]
3 tart /ˈtɑɚt/ verb
tarts; tarted; tarting
3 tart
/ˈtɑɚt/
verb
tarts; tarted; tarting
Britannica Dictionary definition of TART

tart up

[phrasal verb]
tart (someone) up informal
: to try to make (yourself or someone else) attractive by wearing fancy clothes, makeup, etc.
— often used figuratively in British English