1. The passage for the breath to and from the lungs; the trachea.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• windagee,
• windige,
• qindpipe,
• aindpipe,
• sindpipe,
• eindpipe,
• 3indpipe,
• 2indpipe,
• wundpipe,
• wjndpipe,
• winsdpipe,
• windepipe,
• windppie,
• windpiep,
• windppipe,
• windpippe,
• uinpope,
• windtiht,
• swinepiipe,
• pichpipe

• wind power,
• windup,
• wind poppy,
• wind up.

The adjective form of the word "windpipe" is "windpipe". The word doesn't typically change form when used as an adjective. However, you might sometimes see phrases like "windpipe anatomy" or "windpipe structure" where "windpipe" is used as an attributive noun modifying another noun.

The plural of the "windpipe" can be the "windpipes".

The singular of the "windpipe" can be the "windpipe".