What is the meaning of Sier?

indefinite plural of si

present of si

decoration

reception, welcome

inflection of sieren:

1. first-person singular present indicative
2. (in case of inversion) second-person singular present indicative
3. imperative

first-person singular present indicative

(in case of inversion) second-person singular present indicative

imperative

they ; a third person, singular, personal pronoun referring to a nonbinary person or person of unspecified gender

their ; a third person, singular, possessive determiner referring to a nonbinary person or person of unspecified gender

present of si

Source: wiktionary.org