Typically, "glass" is a noun or used as a modifier (a glass door).
The OED lists "glass" as verb (usually a hunting term) meaning to scan one's surrounding with binoculars. As verb, "glass" also mean to enclose with glass.
Present tense -- glass
Past tense and past participle -- glassed
Present participle -- glassing
The word glass is a noun. The plural form is glasses.
adverb
what part of speech is work
i want to know what part of speech is camping
what part of speech is beneath
what part of speech is eleven
The word cloche is a noun. It is a glass covering for plants.
Simile
The part of speech depends on the use of the word in context. If the use is "Port wine", the word is used to describe the noun "wine" and therefore is an adjective. If the word is used as a noun e.g., "...a glass of Port", it is a noun.
The part of speech for "answer" is a noun.
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
adverb
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Yes, Gypsum is part of glass.
The part of speech for "unfamiliar" is an adjective.
The part of speech for "explicit" is an adjective.