tunnel

Fetched 2026-10-26 (cache).

Synonyms: trunnel, runnel, funnel, tunnell, gunnel, tunel, cunnel, tunney, tunned, stunnel, tinnel

Antonyms: trunnel, runnel, funnel, tunnell, gunnel, tunel, cunnel, tunney, tunned, stunnel, tinnel

Related words from Datamuse; suggestions, not definitions.

Noun

An [[underground]] or [[underwater]] [[passage]].
A passage [[through]] or [[under]] some [[obstacle]].
A [[hole]] in the [[ground]] made by an [[animal]], a [[burrow]].
{{lb|en|computing|networking}} A [[wrapper]] for a [[protocol]] that cannot otherwise be used because it is [[unsupported]], [[blocked]], or [[insecure]].
A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a [[funnel]].
The opening of a [[chimney]] for the passage of smoke; a [[flue]].
{{lb|en|mining}} A [[level]] [[passage]] driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the ''[[drift]]'', or ''[[gangway]]'', which is led along the vein when reached by the tunnel.
{{lb|en|figurative}} Anything that resembles a tunnel.

{{lb|en|transitive}} To [[make]] a tunnel through or under something; to burrow.
{{lb|en|intransitive}} To dig a tunnel.
{{lb|en|computing|networking}} To transmit something through a tunnel (wrapper for an insecure or unsupported protocol).
{{lb|en|transitive|medicine}} To insert a [[catheter]] into a [[vein]] to allow long-term use.
{{lb|en|physics}} To undergo the [[quantum-mechanical]] phenomenon where a [[particle]] penetrates through a [[barrier]] that it classically cannot surmount.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.