“INFALL” is a valid word. — 9 points Scrabble

finalthe final match between the winners of all previous matches in an elimination tournament
flailan implement consisting of handle with a free swinging stick at the end; used in manual threshing

fallthe season when the leaves fall from the trees
filla quantity sufficient to satisfy
failfail to do something; leave something undone
nailhorny plate covering and protecting part of the dorsal surface of the digits
lainbe located or situated somewhere; occupy a certain position
flanopen pastry filled with fruit or custard
anila blue dye obtained from plants or made synthetically
fainhaving made preparations
nill
filaa threadlike structure (as a chainlike series of cells)
naifa naive or inexperienced person
alif

allquantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class
ainbelonging to or on behalf of a specified person (especially yourself); preceded by a possessive
fana device for creating a current of air by movement of a surface or surfaces
illan often persistent bodily disorder or disease; a cause for complaining
linUnited States sculptor and architect whose public works include the memorial to veterans of the Vietnam War in Washington (born in 1959)
finthe cardinal number that is the sum of four and one
nila quantity of no importance
aniblack tropical American cuckoo
fil
ailaromatic bulb used as seasoning

ina unit of length equal to one twelfth of a foot
if
anan associate degree in nursing
laa white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
ala silvery ductile metallic element found primarily in bauxite
naa silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
aian agency of the United States Army responsible for providing timely and relevant and accurate and synchronized intelligence to tactical and operational and strategic level commanders
fathe syllable naming the fourth (subdominant) note of the diatonic scale in solmization

INFALL