📖 Definitions of "Tunnel"
noun
- 1
An underground or underwater passage.
- 2
A passage through or under some obstacle.
- 3
A hole in the ground made by an animal, a burrow.
- 4
A wrapper for a protocol that cannot otherwise be used because it is unsupported, blocked, or insecure.
verb
- 1
To make a tunnel through or under something; to burrow.
- 2
To dig a tunnel.
- 3
To transmit something through a tunnel (wrapper for insecure or unsupported protocol).
- 4
To insert a catheter into a vein to allow long-term use.
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