1. a speech defect in which ‘s’ and ‘z’ sounds are pronounced like ‘th’

1. to speak with a lisp

Examples

• The child had a slight lisp that made her sound adorable.
• His lisp became less noticeable as he grew older.
• The speech therapist helped correct her lisp.
• She lisped when she said words with ‘s’ sounds.
• He tends to lisp when he’s nervous.
• The actor had to learn to lisp for his role.