1. in a state of nervous excitement or agitation
Usage: often used predicatively
2. fluttering or moving lightly in the wind
Usage: literal sense

1. in a fluttering manner
Usage: less common usage

Examples

• She was all aflutter before her job interview.
• The news left the entire office aflutter with excitement.
• The curtains hung aflutter in the evening breeze.
• His heart was aflutter as he waited for the results.
• The flags were aflutter on the windy day.
• The butterflies set her stomach aflutter.
• The leaves were aflutter in the autumn wind.