Illustration of roof
- 1 gambrel
- 2 mansard
- 3 hip
- 4 lean-to
1
a(1)
: the cover of a building
(2)
: material used for a roof : roofing
b
: the roof of a dwelling conventionally designating the home itself
living under my roof [=in my house]
didn't have a roof over my head[=didn't have any place to live]
They all live under the same roof. [=in the same house]
3
a
: the vaulted upper boundary of the mouth
b
: a covering structure of any of various parts of the body
roof of the skull
4
: something suggesting a roof: such as
a
: a canopy of leaves and branches
b
: the top over the passenger section of a vehicle
roofed; roofing; roofs
1
a
: to cover with or as if with a roof
b
: to provide with a particular kind of roof or roofing
—often used in combination
slate-roofed houses
2
: to constitute a roof over
roofer
noun
Examples of roof in a Sentence
Noun
the roof of a car
The roof of the old barn collapsed.
He bit into a hot slice of pizza and burned the roof of his mouth.
Verb
fed and roofed the emergency volunteers for a week
Recent Examples on the Web
CBS News, 12 June 2026
Shared by Iran's semiofficial Tasnim news agency, the pictures show that the rooves of the facilities have collapsed although the walls remain intact.
—Sarah Dean, NBC news, 12 June 2026
George Avalos, Mercury News, 18 June 2026
Boosting the eco-friendy vibe, a carport roofed in solar panels serves as the house power supply.
—Caitlin Gunther, Architectural Digest, 17 June 2026
See All Example Sentences for roof
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Noun
Strong winds blew part of the roof off an apartment building in the Chicago area, forcing residents to leave, according to NBC 5 Chicago.
—CBS News, 12 June 2026
Shared by Iran's semiofficial Tasnim news agency, the pictures show that the rooves of the facilities have collapsed although the walls remain intact.
—Sarah Dean, NBC news, 12 June 2026
Verb
The 240 Baypointe apartment complex is expected to contain a club room, lounge, fitness center, and roof deck amenities on two levels, according to the proposal.
—George Avalos, Mercury News, 18 June 2026
Boosting the eco-friendy vibe, a carport roofed in solar panels serves as the house power supply.
—Caitlin Gunther, Architectural Digest, 17 June 2026
See All Example Sentences for roof
Cite this Entry
“Roof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roof. Accessed 19 Jun. 2026.
Copy CitationKids Definition
1
a
: the upper covering part of a building
b
: a place to live : home
a roof over one's head
2
: the upper boundary of the mouth
3
: something resembling a roof in form, position, or purpose
roof
2 of 2 verb1
: to cover with or as if with a roof
2
: to provide with roofing
roofer
noun
Medical Definition
plural roofs
ˈrüfs, ˈru̇fs also ˈrüvz, ˈru̇vz
1
: the vaulted upper boundary of the mouth supported largely by the palatine bones and limited anteriorly by the dental lamina and posteriorly by the uvula and upper part of the fauces
2
: a covering structure of any of various parts of the body other than the mouth
roof of the skull
roof of the dental pulp chamber
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