| Date: | 1300-1400 |
| Language: | Old French |
| Origin: | Latin, present participle of constare 'to stand firm, be constant, cost', from com- ( COM-) + stare 'to stand' |
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con‧stant1 S2 W2

1 happening regularly or all the time :
Amy lived in constant fear of being attacked.
He kept in constant contact with his family while he was in Australia.
Amy lived in constant fear of being attacked.
He kept in constant contact with his family while he was in Australia.2 staying the same :
travelling at a constant speed
travelling at a constant speed3 literary loyal and faithful :
a constant friend
a constant friend