Phrase structure rule abbreviations (partial)

list.md

S - Sentence
NP - Noun Phrase
VP - Verb Phrase
PP - Prepositional Phrase
AdvP - Adverb Phrase
AdjP - Adjective Phrase
Det - Determiner
N - Noun
V - Verb
P - Preposition
Adv - Adverb
Adj - Adjective
Pro - Pronoun
Aux - Auxiliary Verb
M - Modal
Conj - Conjunction
Num - Numeral
Interj - Interjection
Q - Quantifier
Part - Particle
Deg - Degree
CP - Complementizer Phrase
C - Complementizer
DP - Determiner Phrase
TP - Tense Phrase
T - Tense Marker
NegP - Negation Phrase
Neg - Negation Marker
AspP - Aspect Phrase
Asp - Aspect Marker
MoodP - Mood Phrase
Mood - Mood Marker
WhP - Wh-Phrase (for questions)
Wh - Wh-Word (like "what", "who", "how", etc.)
L - Classifier (in languages with classifiers)
TopP - Topic Phrase
Top - Topic Marker
FocusP - Focus Phrase
Focus - Focus Marker
GerundP - Gerund Phrase
IP - Inflectional Phrase
XP - X-bar Phrase
X - Head of a Phrase (X can be any category)
Spec - Specifier
Comp - Complement
LCP - Locative Complement Phrase
RRC - Reduced Relative Clause
V2 - Verb Second (a rule in certain languages like German)
V1 - Verb First (for sentence initial verbs in some languages)
IO - Indirect Object
DO - Direct Object
SC - Small Clause
VPrt - Verb Particle (as in phrasal verbs)
AP - Adjective Phrase
UCP - Unlike Coordination Phrase
FP - Focus Phrase
LFP - Left Focus Phrase
RFP - Right Focus Phrase
Op - Operator
Perf - Perfective
Prog - Progressive
Pass - Passive
Caus - Causative
Recip - Reciprocal
Reflex - Reflexive
Dem - Demonstrative
Poss - Possessive
Ord - Ordinal
Card - Cardinal
Adjunct - Adjunct