Following are all the gap-fill like words, in the list below.
GAPFILL
100% like gap-fill
FILL-UP
100% like gap-fill
STOP-GAP
99.99% like gap-fill
FILLERCAP
99.99% like gap-fill
SPARKGAP
99.98% like gap-fill
TOPUP
99.98% like gap-fill
FALL-BACK
99.98% like gap-fill
PLACE HOLDER
99.97% like gap-fill
DRAIN PLUG
99.97% like gap-fill
WALLPIECE
99.96% like gap-fill
SYNCH
99.96% like gap-fill
JIFFY
99.96% like gap-fill
WORDBREAK
99.95% like gap-fill
WORD-BREAK
99.95% like gap-fill
RAIL REPLACEMENT SERVICE
99.94% like gap-fill
CUTOUT
99.94% like gap-fill
JIFFY BAG
99.94% like gap-fill
JIFFY-BAG
99.93% like gap-fill
CROSS-HATCH
99.93% like gap-fill
TICKBOX
99.92% like gap-fill
PLOTHOLE
99.92% like gap-fill
FREE-SHEET
99.92% like gap-fill
CLEAROUT
99.91% like gap-fill
FILISTER
99.91% like gap-fill
ENGRAINER
99.9% like gap-fill
FITT
99.9% like gap-fill
SANDBREAK
99.9% like gap-fill
GAS-AND-DASH
99.89% like gap-fill
CLING-WRAP
99.89% like gap-fill
GLUE-STICK
99.88% like gap-fill
MAKE-SHIFT
99.88% like gap-fill
PILL-BOX
99.88% like gap-fill
RUN-OUT
99.87% like gap-fill
PILOT-HOLE
99.87% like gap-fill
BACK-UP
99.86% like gap-fill
CAVE-IN
99.86% like gap-fill
PLUGIN
99.86% like gap-fill
GLIFT
99.85% like gap-fill
FREE SHEET
99.85% like gap-fill
LOCK-PICK
99.84% like gap-fill
BATTLE-LINE
99.84% like gap-fill
WASHUP
99.84% like gap-fill
UP-TICK
99.83% like gap-fill
SAND BOX
99.83% like gap-fill
CENTRE PUNCH
99.82% like gap-fill
TICKY-BOX
99.82% like gap-fill
HOLDUP
99.82% like gap-fill
BLANK-CARTRIDGE
99.81% like gap-fill
PUNCHUP
99.81% like gap-fill
LOCK-UP
99.8% like gap-fill
STEP-THRU
99.8% like gap-fill
EN-DASH
99.8% like gap-fill
CHECK BOX
99.79% like gap-fill
LINEFEED
99.79% like gap-fill
HOLEPUNCH
99.78% like gap-fill
CROSSWORD
99.78% like gap-fill
SPONGE-BAG PANTS
99.78% like gap-fill
LEAD IN
99.77% like gap-fill
TAP-IN
99.77% like gap-fill
WALLPLUG
99.76% like gap-fill
GLUESTICK
99.76% like gap-fill
PIGEON HOLE
99.76% like gap-fill
PAINT POT
99.75% like gap-fill
HIDINGPLACE
99.75% like gap-fill
TIME-SUCK
99.74% like gap-fill
SPACEBRIDGE
99.74% like gap-fill
CHAPPIE
99.74% like gap-fill
HALF-TERM
99.73% like gap-fill
FADE-IN
99.73% like gap-fill
JUMPSTART
99.72% like gap-fill
BREATHING-SPACE
99.72% like gap-fill
CLING WRAP
99.72% like gap-fill
HATCH, MATCH AND DESPATCH
99.71% like gap-fill
FLOOD-GATE
99.71% like gap-fill
SEARCH-FU
99.7% like gap-fill
FLOOD GATE
99.7% like gap-fill
HOLLOWPOINT
99.7% like gap-fill
TIME SUCK
99.69% like gap-fill
STICK PLASTER
99.69% like gap-fill
PENCILING
99.68% like gap-fill
BLEEDTHROUGH
99.68% like gap-fill
HIGH-PASS
99.68% like gap-fill
LEAD UP
99.67% like gap-fill
CLEAN-UP
99.67% like gap-fill
FIRE-FIGHT
99.66% like gap-fill
HIDING-PLACE
99.66% like gap-fill
DESKPAD
99.66% like gap-fill
FOLLOWTHROUGH
99.65% like gap-fill
PIGEON-HOLE
99.65% like gap-fill
FACE-LIFT
99.64% like gap-fill
JUMP START
99.64% like gap-fill
HIDLE
99.64% like gap-fill
SHOVELING
99.63% like gap-fill
BOTTLECAP
99.63% like gap-fill
LOCKPICK
99.62% like gap-fill
PHONEBOX
99.62% like gap-fill
COVERUP
99.62% like gap-fill
CONNECTER
99.61% like gap-fill
SEAL SCRIPT
99.61% like gap-fill
SLASH-MARK
99.6% like gap-fill