Adjective
Sure is an adjective. :)
Noun--however, many words have several possible parts of speech; please submit the Whole Sentence when asking for part of speech--cannot be sure without seeing how it is used in the sentence, as that's what determines the part of speech.
This is called a particle or sometimes an interjection.
Bias is a noun in that sentence.
Pretty sure its the direct Object.
Not sure if it is preposition or adverb. What does it modify?
The word "to" in the sentence is a preposition. It is used to indicate the relationship between "application" and "meaningful."
Parts of Speech Noun Verb PREposition Interjection ADJective ADVerb Conjunction PROnoun Simply put, the job or function of a word or phrase in a sentence.
preposition for sure
i think it is a prepositional phrase but i am not 100% sure
I'm pretty sure its a noun.
im not sure