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Definitions

seal off

VERB
quarantine
Synonyms
STRONGEST
block off sequester
STRONG
confine cordon detach insulate remove restrict seclude segregate separate
WEAK
close off keep apart
Antonyms
STRONG
combine desegregate free join let go release unite
VERB
ring
Synonyms
STRONGEST
circle enclose surround
STRONG
belt circumscribe compass confine encompass gird girdle inclose loop rim round
WEAK
begird hem in move around
Antonyms
STRONGEST
free let go release

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Schmidt said a proposed alternative had been to allow Deltopia to continue but to seal off Isla Vista to prevent out of towners from entering by using roadblocks and checkpoints.

From Los Angeles Times • Jan. 18, 2026

And it exposes something deeper about how the law handles its most final punishment: its willingness to seal off inquiry precisely when the stakes are highest.

From Slate • Jun. 26, 2025

Police used barricades and razor wire to seal off major roads - especially those leading to State House and parliament.

From BBC • Jun. 25, 2025

Were telomerase to seal off a broken strand of DNA with a telomere, it would prevent further repair of that break and delete essential genes.

From Science Daily • Feb. 15, 2024

He was trying to seal off the front of his cell by hanging plastic bags and blankets all over the bars—the smoke was that dense.

From "Newjack: Guarding Sing Sing" by Ted Conover