space(EMPTY PLACE)
US
a valley: 山谷
We used to go for long walks in the hollow.我们过去常去山谷里远足。
Sleepy Hollow睡谷

SMART Vocabulary: related words and phrases

Holes, hollows and dips
anti-crack
aperture
blistered
chink
cranny
cratering
gauge
interstice
ladder
leak
leaky
micropore
microporosity
microporous
piercing
pinprick
shaft
spyhole
thumbhole
void

You can also find related words, phrases, and synonyms in the topics:

Geography: valleys

hollow | American Dictionary

hollow
adjective
us/ˈhɑl·oʊ/

hollowadjective (EMPTY)

having an empty space inside or on the surface of an object:
a hollow tree
His hollow cheeks and paleness made him look ill.
If a sound is hollow, it sounds as if it were made by hitting an empty container:
the low, hollow rumble of thunder

hollowadjective (WITHOUT VALUE)

(of situations, feelings, or words) lacking value; not true or sincere:
a hollow victory
hollow promises
Their objections had a hollow ring (= did not seem sincere).
hollow
noun[ C ]
us/ˈhɑl·oʊ/

hollownoun[C] (EMPTY)

an empty space inside something; a hole
A hollow is also a small valley:
We hiked along Bear Hollow last weekend.

Examples of hollow

hollow
In this scenario, such formulations as ' the people ' could ring distinctly hollow.
They also cultivate fruits and vegetables during the dry season in the hollows and near permanent ponds.
It would at least make the excuses for not using them ring more hollow.
When too much attention is paid to the spectacle being made, and not to the truth being administered, you have a hollow form.
In total, seven funerary ollas, two hollow figurines, 23 vessels, and one miniature olla were found.
The energetics of a linear array of hollow or stagnant-cored vortices of finite crosssection in an ideal fluid is studied in this paper.
Six hundred times solid density compression of directly driven hollow shell pellets.
The created plasma is confined by the capillary wall, electrode material and flow in a specified chamber through a hollow electrode.
The hollow spaces left when the creatures dissolved were filled with silicate in solution.
His creative devices are monotonous and there are many ' 'hollow' ' moments.
There is a hollow wrist mechanism at the end of the arm where pneumatic and electrical services to end of arm tooling can be routed.
This now means that campaigns aimed at encouraging the employment of older workers may ring hollow to some employers and older workers.
X-ray emission from hollow atoms produced by collisions of multiply charged ions with a solid.
There are very few hollow babies in which fingers are individually modeled.
The problem with this approach is that the majority of nearly complete hollow babies have been looted, their context lost.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.