Sometimes source code contains a novel or noteworthy solution to a specific problem, In such cases, comments may contain an explanation of the methodology.
facsimile
fact
faction
factor
factory
factual
faculty
fad
fade
fag
faggot
fanatical
fanatically
fanaticism
fanciful
fancy
fanfare
fang
fan mail
fanny
fantasize
fantastic
fantastically
fantasy
far
faraway
farce
farcical
fare
Far East
farewell
far-fetched
far-flung
farm
farmer
farmers' market
farmhouse
farming
farmyard
far-off
far-out
far-reaching
farsighted
fart
farther
farthest
fascinate
fascinating
fascination
fascism
fascist
fashion
fashionable
fashionably
fast
fasten
fastener
fastening
fast food
fast-forward
fastidious
fast lane
fat
fatal
fatalism
fatalistic
fatality
fatally
fate
fated
fateful
Father
father
fatherhood
father-in-law
fatherly
Father's Day
fathers-in-law
fathom
fatigue
fatten
fattening
fatty
fatuous
faucet
fault
faultless
faulty
fauna
faux pas
favor
favorable
favorably
favorite
favoritism
fawn
fax
faze
FBI
fear
fearful
fearfully
fearless
fearlessly
fearlessness
feasibility
feasible
feast
feat
feather
feathery
feature
Feb.
February
fecal
feces
Fed
fed
federal
federalism
federalist
Federal Reserve System
federate
federation
fed up
fee
feeble
wide
information
often
block
called
formatted
methodology
problem
source
explanation
novel