Thin blue line, say - Crossword Clue

Below are possible answers for the crossword clue Thin blue line, say.

4 letter answer(s) to thin blue line, say

VEIN

a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood"
a distinctive style or manner; "he continued in this vein for several minutes"
a layer of ore between layers of rock
any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
make a veinlike pattern
one of the horny ribs that stiffen and support the wing of an insect

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