standard gauge

noun 0.737

narrow

noun 0.727

narrower

noun 0.692

narrowness

noun 0.656

narrows

noun 0.644

narrowing

noun 0.623

railway

noun 0.618

rail track

noun 0.618

narrowboat

noun 0.611

railroad

noun 0.607

strait and narrow

noun 0.580

rail transport

noun 0.578

train track

noun 0.577

railway line

noun 0.571

railroad track

noun 0.567

rail

noun 0.565

railway track

noun 0.558

gauge

noun 0.558

straight and narrow

noun 0.550

singletrack

noun 0.549

light rail

noun 0.547

railway train

noun 0.531

tramway

noun 0.529

rail head

noun 0.520

monorail

noun 0.520

gauge theory

noun 0.518

goods train

noun 0.515

guide rail

noun 0.510

short track

noun 0.510

railway vehicle

noun 0.508

nanoscale

noun 0.507

steam locomotive

noun 0.505

miniature

noun 0.503

tramline

noun 0.502