straight and narrow
A path of honesty; a procedure according to rules and plans.
The project would seriously go down the pan if Mrs. Foster weren't here to keep it on the straight and narrow.
adj
Having a small width; not wide; having opposite edges or sides that are close, especially by comparison to length or depth.
a narrow hallway
She was like a Beardsley Salome, he had said. And indeed she had the narrow eyes and the high cheekbone of that creature, and as nearly the sinuosity as is compatible with human symmetry.
Of little extent; very limited; circumscribed.
The Jews were but a small nation, and confined to a narrow compass in the world.
Restrictive; without flexibility or latitude.
a narrow interpretation
Contracted; of limited scope; bigoted
a narrow mind
narrow views
Having a small margin or degree.
a narrow escape
The Republicans won by a narrow majority.
noun
A narrow passage, especially a contracted part of a stream, lake, or sea; a strait connecting two bodies of water.
the narrows of New York harbor
Near the island lay on one side the jaws of a dangerous narrow.
verb
To reduce in width or extent; to contract.
We need to narrow the search.
To get narrower.
The road narrows.
To partially lower one's eyelids in a way usually taken to suggest a defensive, aggressive or penetrating look.
He stepped in front of me, narrowing his eyes to slits.
She wagged her finger in his face, and her eyes narrowed.
To contract the size of, as a stocking, by taking two stitches into one.
To convert to a data type that cannot hold as many distinct values.
to narrow an int variable to a short variable