knot

screw tangle

bond braid bunch coil connection contortion entanglement gnarl helix hitch joint kink ligament ligature link mat nexus perplexity rosette snag snarl spiral splice tie twirl twist warp whirl whorl yoke

vinculum

clump cluster mob swarm

aggregation assemblage assortment band bunch circle clique collection company crew gang gathering group heap mass pack pile set squad tuft

individual

line

knit

bind cord entangle loop secure tat tether tie

loose loosen unfasten untie

unknot