1. to treat someone in a condescending way, as if they are less intelligent or important
Usage: British spelling
2. to be a regular customer of a business or establishment
Usage: British spelling
3. to give financial or other support to someone, especially an artist or cause
Usage: British spelling; formal

Examples

• Don’t patronise me by explaining things I already know.
• She felt patronised when her boss spoke to her like a child.
• We patronise the local bookshop whenever we can.
• The wealthy family patronised several young artists.
• He patronises that restaurant every Friday evening.
• The foundation patronises educational programs in rural areas.