pad vs railbed

pad

noun
  • A footpath, particularly one unformed or unmaintained; a road or track. 

  • An electrical extension cord with a multi-port socket on one end: "trip cord" 

  • The mostly hairless flesh located on the bottom of an animal's foot or paw. 

  • A small house, apartment, or mobile home occupied by a single person; such as a bachelor, playboy, etc. 

  • Any cushion-like part of the human body, especially the ends of the fingers. 

  • A panel or strip of material designed to be sensitive to pressure or touch. 

  • A random key (originally written on a disposable pad) of the same length as the plaintext. 

  • A floating leaf of a water lily or similar plant. 

  • A soft cover for a batsman's leg that protects it from damage when hit by the ball. 

  • A soft, or small, cushion. 

  • The effect produced by sustained lower reed notes in a musical piece, most common in blues music. 

  • A flat surface or area from which a helicopter or other aircraft may land or be launched. 

  • A prison cell. 

  • A type of wickerwork basket, especially as used as a measure of fish or other goods. 

  • An easy-paced horse; a padnag. 

  • A cushion-like thickening of the skin on the under side of the toes of animals. 

  • A toad. 

  • A flattened mass of anything soft, to sit or lie on. 

  • A kind of cushion for writing upon, or for blotting, especially one formed of many flat sheets of writing paper; now especially such a block of paper sheets as used to write on. 

  • A soft bag or cushion to relieve pressure, support a part, etc. 

  • A synthesizer instrument sound used for sustained background sounds. 

  • A cushion used as a saddle without a tree or frame. 

  • A bed. 

  • A stuffed guard or protection, especially one worn on the legs of horses to prevent bruising. 

  • The sound of soft footsteps, or a similar noise made by an animal etc. 

  • The amount by which a signal has been reduced. 

  • A piece of timber fixed on a beam to fit the curve of the deck. 

verb
  • To imbue uniformly with a mordant. 

  • To furnish with a pad or padding. 

  • To wear a path by walking. 

  • To stuff. 

  • To deliberately play the ball with the leg pad instead of the bat. 

  • To travel on foot. 

  • To travel along (a road, path etc.). 

  • To increase the size of, especially by adding undesirable filler. 

  • To walk softly, quietly or steadily, especially without shoes. 

intj
  • Indicating a soft flat sound, as of bare footsteps. 

railbed

noun
  • The substructure of a railway, underlying the tracks; the roadbed of a railroad. 

How often have the words pad and railbed occurred in a corpus of books? (source: Google Ngram Viewer )