friction composition
friction coupling
friction tube
Discordia
Eris
abrading
abrasion
animosity
antagonism
antipathy
argument
attrition
backlash
bad blood
belligerence
bickering
caressing
chafing
clash
clashing
collision
competition
conflict
confutation
contention
contradiction
contraposition
contrariety
contrariness
controversy
counteraction
counterposition
counterworking
crankiness
cross-purposes
crotchetiness
despitefulness
disaccord
disaffinity
disagreement
discord
discordance
discordancy
disharmony
dispute
dissension
dissent
enmity
erosion
feeling
fingering
coefficient of friction
dynamic friction
friction clutch
friction match
frictional
frictious
frictive
static friction
annoyance
complication
distraction
disturbance
fatigue
inconvenience
misunderstanding
resistance
rivalry
strife
suffer
tension
turmoil
uncertainty
unrest
vibration
addiction
affliction
benediction
constriction
conviction
crucifixion
depiction
dereliction
diction
eviction
fiction
infliction
interdiction
jurisdiction
nonfiction
prediction
restriction