1. having a serious, important, or useful quality or purpose
2. having a clear meaning that can be understood
3. expressing or conveying deep emotion or significance through subtle signs

Examples

• She wanted to find meaningful work that would help others.
• The data showed a meaningful improvement in test scores.
• They exchanged meaningful glances across the room.
• His speech contained many meaningful insights about leadership.
• The teacher helped students make meaningful connections between concepts.
• The ceremony was a meaningful tribute to the veterans.
• She gave him a meaningful look that said everything.