What is the meaning of -us?

Used to form taxonomic names.

-y, -ful, -ous, -ose

Forms nouns denoting resemblance.

alternative form of -uus

Used to form action nouns from verbs; -ion

alternative form of -ous

alternative form of -es.

-ous, full of, prone to; used to form adjectives from nouns

-ous, used for forming adjectives

alternative form of -as

her (object pronoun), it

them

Forms adjectives; -ous, -ful, -y, -ive etc.

Ending of the conditional in verbs.

Derives nouns from verbs.

Derives nouns from adjectives.

Forms nouns from verbs, describing an action, event or a result of that action.

Forms nouns, indicating resemblance or association.

alternative form of -uus

Added to a proper noun or other nouns to create a diminutive noun.

A distinguishable foreign word ending in nouns. It cannot be considered as an independent Hungarian suffix.

usual nominative singular ending of second declension masculine nouns or adjectives

2. used as a derivational suffix to form compound agent nouns

   used as a derivational suffix to form compound agent nouns

   used to Latinize names (generally male) that end in consonants

   usual nominative singular ending of second declension feminine nouns

   nominative/accusative singular ending of a handful of second declension neuter nouns:

   used to derive adjectives from other parts of speech

   2. suffixed to noun stems
      1. derives adjectives (often compound) with a sense like "having (noun)"; most productive in New Latin

         suffixed to noun stems

         1. derives adjectives (often compound) with a sense like "having (noun)"; most productive in New Latin

            derives adjectives (often compound) with a sense like "having (noun)"; most productive in New Latin

            derives relational adjectives

            -ing: suffixed to verb stems, derives adjectives (often compound) with a sense like "doing/that does (verb)"

            ending of some neuter nouns in the third declension

            1. nominative/accusative/vocative singular of -us

            nominative/accusative/vocative singular of -us

            nominative/vocative singular of -us for non-neuter nouns in the fourth declension

            nominative/vocative plural of -us for fourth-declension nouns

            genitive singular of -us for fourth-declension nouns

            accusative plural of -us for fourth-declension nouns

            rare alternative genitive singular ending for nouns of the third declension

            Adjectival suffix, applied to verbal and nominal roots to denote a disposal or tendency towards something

            Masculine nominal singular ending for u-stem nouns and adjectives.

            Used to form accusative plurals of masculine a- and u-stem nouns.

            Used to form accusative plurals of masculine a-stem adjectives.

            Used to form the past adverbial (padalyvis) participle

            Forms nouns from verbs, indicating something that is to have the verb's action performed on it.

            Forms nouns from verbs, indicating something that results from having the verb's action performed.

            derogatory suffix

            demonym suffix

            adjectival suffix often indicating a characteristic, propensity or abundance

            -ous, Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the equivalent compound whose name ends in the suffix -ig. For example asid nitrus (“nitrous acid, HNO₂”) has fewer oxygen atoms per molecule than asid nitrig (“nitric acid, HNO₃”).

            Source: wiktionary.org