“WINGTIP” is a valid word. — 13 points Scrabble

winga movable organ for flying (one of a pair)
twineither of two offspring born at the same time from the same pregnancy
pinta British imperial capacity measure (liquid or dry) equal to 4 gills or 568.26 cubic centimeters
pinga river in western Thailand; a major tributary of the Chao Phraya
tinga light clear metallic sound as of a small bell
twiga small branch or division of a branch (especially a terminal division); usually applied to branches of the current or preceding year
intithe basic unit of money in Peru
tipia Native American tent; usually of conical shape

wina victory (as in a race or other competition)
pigdomestic swine
tipthe extreme end of something; especially something pointed
pita sizeable hole (usually in the ground)
pina piece of jewelry that is pinned onto the wearer's garment
tina silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
ginstrong liquor flavored with juniper berries
wighairpiece covering the head and made of real or synthetic hair
wita message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
nipa small drink of liquor
gita person who is deemed to be despicable or contemptible
nita luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
gipdeprive of by deceit

itthe branch of engineering that deals with the use of computers and telecommunications to retrieve and store and transmit information
ina unit of length equal to one twelfth of a foot
pithe ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
tia light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite

WINGTIP