- 
            Phonology
        
- Consonant Inventories (1225 languages)
 - Vowel Quality Inventories (1238 languages)
 - Consonant-Vowel Ratio (1152 languages)
 - Voicing in Plosives and Fricatives (1209 languages)
 - Voicing and Gaps in Plosive Systems (1171 languages)
 - Uvular Consonants (1198 languages)
 - Glottalized Consonants (1173 languages)
 - Lateral Consonants (1186 languages)
 - The Velar Nasal (1193 languages)
 - Vowel Nasalization (1181 languages)
 - Front Rounded Vowels (1168 languages)
 - Syllable Structure (1199 languages)
 - Tone (1220 languages)
 - Fixed Stress Locations (1019 languages)
 - Weight-Sensitive Stress (878 languages)
 - Weight Factors in Weight-Sensitive Stress Systems (841 languages)
 - Rhythm Types (741 languages)
 - Absence of Common Consonants (1160 languages)
 - Presence of Uncommon Consonants (1159 languages)
 
 - 
            Morphology
        
- Fusion of Selected Inflectional Formatives (882 languages)
 - Exponence of Selected Inflectional Formatives (829 languages)
 - Inflectional Synthesis of the Verb (802 languages)
 - Locus of Marking in the Clause (820 languages)
 - Locus of Marking in Possessive Noun Phrases (805 languages)
 - Locus of Marking: Whole-language Typology (755 languages)
 - Prefixing vs. Suffixing in Inflectional Morphology (876 languages)
 - Reduplication (862 languages)
 - Case Syncretism (837 languages)
 - Syncretism in Verbal Person/Number Marking (834 languages)
 
 - 
            Nominal Categories
        
- Number of Genders (1111 languages)
 - Sex-based and Non-sex-based Gender Systems (1068 languages)
 - Systems of Gender Assignment (1023 languages)
 - Coding of Nominal Plurality (1037 languages)
 - Occurrence of Nominal Plurality (944 languages)
 - Plurality in Independent Personal Pronouns (874 languages)
 - The Associative Plural (655 languages)
 - Definite Articles (1012 languages)
 - Indefinite Articles (990 languages)
 - Inclusive/Exclusive Distinction in Independent Pronouns (914 languages)
 - Inclusive/Exclusive Distinction in Verbal Inflection (899 languages)
 - Distance Contrasts in Demonstratives (818 languages)
 - Pronominal and Adnominal Demonstratives (664 languages)
 - Third Person Pronouns and Demonstratives (736 languages)
 - Gender Distinctions in Independent Personal Pronouns (866 languages)
 - Politeness Distinctions in Pronouns (842 languages)
 - Indefinite Pronouns (596 languages)
 - Intensifiers and Reflexive Pronouns (577 languages)
 - Person Marking on Adpositions (743 languages)
 - Number of Cases (933 languages)
 - Asymmetrical Case-Marking (746 languages)
 - Position of Case Affixes (864 languages)
 - Comitatives and Instrumentals (695 languages)
 - Ordinal Numerals (731 languages)
 - Distributive Numerals (516 languages)
 - Numeral Classifiers (713 languages)
 - Conjunctions and Universal Quantifiers (462 languages)
 - Position of Pronominal Possessive Affixes (761 languages)
 
 - 
            Nominal Syntax
        
- Obligatory Possessive Inflection (781 languages)
 - Possessive Classification (734 languages)
 - Genitives, Adjectives and Relative Clauses (648 languages)
 - Adjectives without Nouns (644 languages)
 - Action Nominal Constructions (459 languages)
 - Noun Phrase Conjunction (654 languages)
 - Nominal and Verbal Conjunction (640 languages)
 
 - 
            Verbal Categories
        
- Perfective/Imperfective Aspect (840 languages)
 - The Past Tense (898 languages)
 - The Future Tense (894 languages)
 - The Perfect (793 languages)
 - Position of Tense-Aspect Affixes (831 languages)
 - The Morphological Imperative (716 languages)
 - The Prohibitive (667 languages)
 - Imperative-Hortative Systems (487 languages)
 - The Optative (675 languages)
 - Situational Possibility (538 languages)
 - Epistemic Possibility (522 languages)
 - Overlap between Situational and Epistemic Modal Marking (450 languages)
 - Semantic Distinctions of Evidentiality (613 languages)
 - Coding of Evidentiality (652 languages)
 - Suppletion According to Tense and Aspect (608 languages)
 - Verbal Number and Suppletion (609 languages)
 
 - 
            Word Order
        
- Order of Subject, Object and Verb (1001 languages)
 - Order of Subject and Verb (961 languages)
 - Order of Object and Verb (954 languages)
 - Order of Object, Oblique, and Verb (752 languages)
 - Order of Adposition and Noun Phrase (836 languages)
 - Order of Genitive and Noun (893 languages)
 - Order of Adjective and Noun (927 languages)
 - Order of Demonstrative and Noun (822 languages)
 - Order of Numeral and Noun (845 languages)
 - Order of Relative Clause and Noun (750 languages)
 - Order of Degree Word and Adjective (593 languages)
 - Position of Polar Question Particles (720 languages)
 - Position of Interrogative Phrases in Content Questions (666 languages)
 - Order of Adverbial Subordinator and Clause (567 languages)
 - Relationship between the Order of Object and Verb and the Order of Adposition and Noun Phrase (674 languages)
 - Relationship between the Order of Object and Verb and the Order of Relative Clause and Noun (654 languages)
 - Relationship between the Order of Object and Verb and the Order of Adjective and Noun (694 languages)
 - Order of Negative Morpheme and Verb (625 languages)
 - Position of Negative Morpheme With Respect to Subject, Object and Verb (577 languages)
 
 - 
            Simple Clauses
        
- Alignment of Case Marking of Full Noun Phrases (744 languages)
 - Alignment of Case Marking of Pronouns (704 languages)
 - Alignment of Verbal Person Marking (678 languages)
 - Expression of Pronominal Subjects (680 languages)
 - Verbal Person Marking (753 languages)
 - Third Person Zero of Verbal Person Marking (675 languages)
 - Order of Person Markers on the Verb (665 languages)
 - Ditransitive Constructions: The Verb 'Give' (603 languages)
 - Reciprocal Constructions (511 languages)
 - Passive Constructions (690 languages)
 - Antipassive Constructions (595 languages)
 - Applicative Constructions (502 languages)
 - Periphrastic Causative Constructions (300 languages)
 - Nonperiphrastic Causative Constructions (440 languages)
 - Negative Morphemes (704 languages)
 - Symmetric and Asymmetric Standard Negation (519 languages)
 - Subtypes of Asymmetric Standard Negation (407 languages)
 - Negative Indefinite Pronouns and Predicate Negation (365 languages)
 - Polar Questions (674 languages)
 - Predicative Possession (495 languages)
 - Predicative Adjectives (554 languages)
 - Nominal and Locational Predication (517 languages)
 - Zero Copula for Predicate Nominals (596 languages)
 - Comparative Constructions (438 languages)
 
 - 
            Complex Sentences
        
- Relativization on Subjects (532 languages)
 - Relativization on Obliques (488 languages)
 - 'Want' Complement Subjects (452 languages)
 - Purpose Clauses (399 languages)
 - 'When' Clauses (411 languages)
 - Reason Clauses (402 languages)
 - Utterance Complement Clauses (371 languages)
 
 - 
            Lexicon
        
- Hand and Arm (742 languages)
 - Finger and Hand (722 languages)
 - Numeral Bases (813 languages)
 - Number of Non-Derived Basic Colour Categories (383 languages)
 - Number of Basic Colour Categories (364 languages)
 - Green and Blue (583 languages)
 - Red and Yellow (583 languages)
 - M-T Pronouns (625 languages)
 - N-M Pronouns (619 languages)
 - Tea (539 languages)
 
 - 
            Sign Languages
        
- Irregular Negatives in Sign Languages (79 languages)
 - Question Particles in Sign Languages (83 languages)
 
 - 
            Other
        
- Writing Systems (714 languages)
 - Para-Linguistic Usages of Clicks (415 languages)
 
 - 
            Conlang-specific
        
- Conlang type (891 languages)