Meaning & use

sealing

noun·Everyday

Last updated

UK/ˈsiːlɪŋ/
US/ˈsiːlɪŋ/

Meanings

  1. noununcountable

    The act of closing something tightly so that air, liquid or other material cannot get in or out.

    Grammar: Uncountable noun from seal: the sealing of the jar.

    Patterns

    • the sealing of something
    • sealing against something

    Proper sealing of the windows reduced the draft.

    The sealing of the package took only a minute.

    Poor sealing allowed moisture into the box.

  2. nouncountable or uncountable

    A material or layer put on a surface or joint to make it watertight or airtight.

    Grammar: Often used before another noun, such as a sealing strip or sealing compound.

    Patterns

    • a sealing strip
    • sealing around something

    The plumber applied extra sealing around the bath.

    A rubber sealing runs along the edge of the door.

    Cracks in the old sealing caused the leak.

  3. noununcountableformal

    The act of formally confirming a document or agreement by attaching a seal.

    Grammar: Often in a legal setting: the sealing of the deed.

    Patterns

    • the sealing of a document

    The sealing of the treaty took place at noon.

    Wax sealing of letters was once standard practice.

    A clerk witnessed the sealing of the deed.

Word forms

pluralsealings

Common combinations

heat sealing
Heat sealing keeps the snack bags fresh.
sealing tape
Use sealing tape on the edges of the box.
sealing wax
The letter was closed with red sealing wax.
sealing strip
A worn sealing strip let rain into the car.
airtight sealing
Airtight sealing prevents food from spoiling.

Synonyms and how they differ

closing
Closing is general and may leave gaps, while sealing means closing so that nothing leaks.
waterproofing
Waterproofing focuses on keeping out water specifically, while sealing may block air, dust or liquid.
caulking
Caulking is applying a filler to gaps in buildings, a narrower practical sense of sealing.
fastening
Fastening joins parts together but does not necessarily make the join leak-proof.

Opposites

openingunsealing

Word family

seal verb
to close tightly
seal noun
something that closes a gap or confirms a document
sealant noun
material used to seal a gap
sealed adjective
closed so nothing gets in or out
resealable adjective
able to be closed tightly again

Commonly confused: sealing or ceiling? sealing or sealant?

sealing vs ceiling

Ceiling is the top inner surface of a room and sounds the same as sealing in some accents, but means something different.

sealing vs sealant

A sealant is the material used, while sealing is the process or its result.

Practice

The workers noticed water coming through because the ___ around the window had cracked.

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