The model

Machine-Readable Linguistic Primitives

Universal Dependencies compatible surface analysis

Parts of speech

Parts of speech
Tag	Name	Function
ADJ	adjective	Modifies or predicates a property.
ADP	adposition	Marks a noun phrase relation; includes prepositions and postpositions.
ADV	adverb	Modifies a verb, adjective, adverb, clause, or discourse relation.
AUX	auxiliary	Adds tense, aspect, mood, voice, or related grammatical information.
CCONJ	coordinating_conjunction	Joins units of equal syntactic status.
DET	determiner	Marks reference, quantity, definiteness, or possession within a noun phrase.
INTJ	interjection	Expresses reaction, greeting, or discourse signal with loose syntactic attachment.
NOUN	common_noun	Names a class of entity, substance, event, state, or abstraction.
NUM	numeral	Expresses number, quantity, sequence, or measure.
PART	particle	Performs a grammatical function not covered by other closed classes.
PRON	pronoun	Points to participants or entities without repeating a full noun phrase.
PROPN	proper_noun	Names a specific person, place, organization, work, or other entity.
PUNCT	punctuation	Delimits, groups, relates, or emphasizes written units.
SCONJ	subordinating_conjunction	Marks one clause as dependent on another.
SYM	symbol	Represents a non-word sign such as a currency or mathematical symbol.
VERB	verb	Predicates an event, process, action, or state.
X	other	Covers items whose part of speech cannot be determined or falls outside the inventory.