"knot" - key terms from Wikipedia

blood knot
boa knot
butterfly knot
double knot
endless knot
eternal knot
figure eight knot
fisherman's knot
gordian knot
granny knot
knot
knot	complement
knot	diagram
knot	theory
knot	tied
overhand knot
pine knot
prusik knot
red knot
reef knot
sealed knot
slip knot
square knot
stafford knot
surgeon's knot
sword knot
thief knot
tie the knot
trefoil knot
windsor knot