1used to emphasize a statement or response confirming something already suggested:it was not expected to last long, and indeed it took less than three weeks‘She should have no trouble hearing him.’ ‘No indeed.’
used to emphasize a description:it was a very good buy indeed
2used to introduce a further and stronger or more surprising point:the idea is attractive to many men and indeed to many women
3used in a response to express interest, surprise, or contempt:‘A ghost indeed! I’ve never heard anything so silly.’
expressing interest of an ironical kind with repetition of a question just asked:‘Who’d believe it?’ ‘Who indeed?’