1. commits a grammatical error or breach of good manners; speaks or writes incorrectly
Usage: formal; third person singular present tense of ‘solecize’

Examples

• The student solecizes frequently when writing formal essays.
• He solecizes by using ‘ain’t’ in his business presentations.
• The foreign speaker solecizes with English verb tenses.
• She solecizes when she confuses ‘who’ and ‘whom’ in her writing.
• The politician solecizes during interviews, damaging his credibility.