sinuttelu
Sinuttelu is a Finnish sociolinguistic term referring to the practice of addressing someone with the informal second-person singular pronoun sinä instead of the formal te. The related verb sinutella means to switch to this informal form or to invite someone to use it. The opposite practice, using the formal address, is called teitittely.
Sinuttelu functions as a marker of social distance and solidarity. Using sinä typically signals familiarity, equality,
Historically, Finnish has experienced shifts toward informal address similar to other European languages. Institutional and cultural
Etiquette varies: in some contexts it is customary to offer sinuttelu explicitly (e.g., by saying “sinutetaan?”),