い言iいiだ出daすsuい言iいだすidasu
1.
To initiate a conversation or statement by expressing an idea or opinion for the first time.
2.
To verbalize a thought or proposal, bringing it to the attention of others.
3.
To be the first to mention or advocate for something in a discussion or group setting.
Example:
我々が静かに夕食をとっていると、突然、母がもう一度学校に行くつもりだと言い出した。