Submitted by György Chityil ... on Fri, 01/19/2018 - 20:39 Hierarchy: VerbDescription: To pronounce the sibilant letter ‘s’ imperfectly; to give ‘s’ and ‘z’ the sounds of ‘th’ ({{IPA|/? / ð/}}) — a defect common amongst children.Ngram Text: lispSource: WiktionaryIssue: 0Wiktionary tag: IPANgram Count: 1