Select the most appropriate synonym to substitute the bracketed word in the given sentence.

They wanted me to (to expand) on this topic because I had some decent ideas on the subject.

expatiate

The most appropriate synonym to substitute the bracketed word in the given sentence is expatiate.

• Paucity means a small or insufficient amount.
• Notoriety means the state of being famous or well-known, especially for something bad.
• Partisan means supporting a particular party or cause with strong bias.
• Expatiate means to speak or write at great length about something, especially in a detailed and elaborate way.