Word.ws English Dictionary

tightlock

tightlock noun: a form of Janney coupler, typically used on North American mainline passenger rail cars, having mechanical features that reduce slack in normal operation and prevent telescoping in derailments, yet remain compatible with other Janney types.

Noun

tightlock (plural tightlocks)

  1. (attributive, often) A form of Janney coupler, typically used on North American mainline passenger rail cars, having mechanical features that reduce slack in normal operation and prevent telescoping in derailments, yet remain compatible with other Janney types.

Forms of tightlock

pluraltightlocks

Origin of tightlock

From tight + lock.

Questions about tightlock

What does tightlock mean?
Tightlock means a form of Janney coupler, typically used on North American mainline passenger rail cars, having mechanical features that reduce slack in normal operation and prevent telescoping in derailments, yet remain compatible with other Janney types.
What part of speech is tightlock?
Tightlock is a noun.
What is the plural of tightlock?
The plural of tightlock is tightlocks.

Words near tightlock in the dictionary

  1. tightley
  2. tightlier
  3. tightliest
  4. tightlipped
  5. tightlippedness
  6. tightlock
  7. tightlocks
  8. tightly
  9. tightner
  10. tightness
  11. tightnesses

Source and license

Adapted from Wiktionary: tightlock (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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