The verb sealing is the present participle of the verb to seal, to hunt for seals. The present participle of the verb is also a gerund (verbal noun); the noun sealing is the act of seal hunting. The present participle is also an adjective to describe a noun related to seal hunting.
sealing
sealing
If your reactor is on fire, sealing it off would be a good idea.
Sealing usually means, to be encasing something in an envelope or another object, so a good sentence would be:When sealing an envelope, make sure that it is pressed down firmly.
The definition of something describes exactly what the word is and how the word can be used. You will also see synonyms for the word and if the word is a noun or adjective when viewing the definition.
The dictionary definition of a word
what is the definition of word-processing package
a definition of a compound word is jack-ass.
The word that goes with that definition is "door."
The definition of the word cited is quote as evidence for or justification of an argument or statement. Another definition for the word cited is mention as an example.
The word Lululemon Athletica has a definition. The word (words) have no definition, but instead are a name of a yoga athletic gear. The word Lulemon Athletica has no definition.
The connotation of a word is its literal dictionary definition. The denotation of a word is its inferred meaning.