“GINGILLIS” is a valid word.

slinga highball with liquor and water with sugar and lemon or lime juice
gillsa British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters
sigil
lingswater chestnut whose spiny fruit has two rather than 4 prongs
nills

signa perceptible indication of something not immediately apparent (as a visible clue that something has happened)
singdeliver by singing
lingwater chestnut whose spiny fruit has two rather than 4 prongs
gigslong and light rowing boat; especially for racing
gilla British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters
nilsa quantity of no importance
sillstructural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
illsan often persistent bodily disorder or disease; a cause for complaining
ginsstrong liquor flavored with juniper berries
nisinot final or absolute
nill
linsUnited States sculptor and architect whose public works include the memorial to veterans of the Vietnam War in Washington (born in 1959)

illan often persistent bodily disorder or disease; a cause for complaining
sinestrangement from god
giglong and light rowing boat; especially for racing
linUnited States sculptor and architect whose public works include the memorial to veterans of the Vietnam War in Washington (born in 1959)
ginstrong liquor flavored with juniper berries
nila quantity of no importance
insan agency in the Department of Justice that enforces laws and regulations for the admission of foreign-born persons to the United States
lis

ishave the quality of being; (copula, used with an adjective or a predicate noun)
ina unit of length equal to one twelfth of a foot
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors

GINGILLIS