Schoonzinnen

Schoonzinnen is a term that does not appear as a standard, widely recognized kinship word in formal Dutch. It is not common in contemporary standard usage and is often regarded as nonstandard, dialectal, or possibly a misspelling or creative coinage.

In Dutch, family relations by marriage are usually described with terms such as schoonouders (parents-in-law), schoonzus (sister-in-law), schoondochter (daughter-in-law), and schoonzoon (son-in-law). The common plural forms are schoonouders, schoonzussen, schoondochters, and schoonzoons. There is no established, universally accepted plural form for schoonzin/schoonzinnen in standard Dutch.

Because schoonzinnen is not a fixed term in the normative lexicon, its meaning, when it appears, can vary by speaker or region. Some speakers might use it informally or dialectally to refer to a group of female relatives by marriage (for example, sisters-in-law) or to in-laws more generally. In other contexts, it could be a mistaken rendering of another in-law term.

If encountered in writing or speech, the intended meaning of schoonzinnen should be inferred from context, or clarified with the speaker. For formal or careful writing, it is advisable to use the standard terms schoonzussen or other precise kinship words to avoid ambiguity.

Overall, schoonzinnen is not a standard Dutch kinship term and is best treated as noncanonical or regionally marked language.