archa definition, archa meaning | English dictionary

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1    a curved structure, normally in the vertical plane, that spans an opening  
2      (Also called)    archway   a structure in the form of an arch that serves as a gateway  
3    something curved like an arch  
a    any of various parts or structures of the body having a curved or archlike outline, such as the transverse portion of the aorta (arch of the aorta) or the raised bony vault formed by the tarsal and metatarsal bones (arch of the foot)  
b    one of the basic patterns of the human fingerprint, formed by several curved ridges one above the other  
   Compare       loop   1       10a       whorl       3  
5    tr   to span (an opening) with an arch  
6    to form or cause to form an arch or a curve resembling that of an arch  
the cat arched its back     
7    tr   to span or extend over  
the bridge arched the flooded stream     
     (C14: from Old French arche, from Vulgar Latin arca (unattested), from Latin arcus bow, arc)  
English Collins Dictionary - English Definition & Thesaurus  
Collaborative Dictionary     English Definition
[arch.] near in space, time or relation, almost (followed by: upon)
"nigh upon" is even stronger in keeping with an antiquated, even biblical style. "The end of the world is nigh upon us"
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