[ lach ]
/ lætʃ /
a device for holding a door, gate, or the like, closed, consisting basically of a bar falling or sliding into a catch, groove, hole, etc.
verb (used with object)
to close or fasten with a latch.
verb (used without object)
to close tightly so that the latch is secured: The door won't latch.
- to grab or hold on, as to an object or idea, especially tightly or tenaciously.
- to include or add in; attach: If we latch the tax on, the bill will come to over $100.
latch onto, Informal.
- to take possession of; obtain; get.
- to acquire understanding of; comprehend.
- to attach oneself to; join in with: The stray dog latched onto the children and wouldn't go home.
How To Stop Saying These Annoying WordsHere's a look at some of our Thesaurus.com fans’ weirdest word hurdles and the synonyms we're suggesting to help get them out of those linguistic traps they seem to be stuck in.
Origin of latch
before 950; 1930–35 for def 5; Middle English lacchen, Old English lǣccan to take hold of, catch, seize; akin to Greek lázesthai to take
Related formsre·latch, verb (used with object)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for latch on (1 of 2)
verb (intr, adverb often foll by to) informal
to attach oneself (to)to latch on to a new acquaintance
to understandhe suddenly latched on to what they were up to
US and Canadian to obtain; get
British Dictionary definitions for latch on (2 of 2)
/ (lætʃ) /
a fastening for a gate or door that consists of a bar that may be slid or lowered into a groove, hole, etc
a spring-loaded door lock that can be opened by a key from outside
Also called: latch circuit electronics a logic circuit that transfers the input states to the output states when signalled, the output thereafter remaining insensitive to changes in input status until signalled again
to fasten, fit, or be fitted with or as if with a latch
Word Origin for latch
Old English læccan to seize, of Germanic origin; related to Greek lazesthai
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012