noun
opening words; speaking out; broaching a topic
Refers to the act of bringing up a subject or starting to speak, often in contexts like making a suggestion or initiating a conversation. Related to the verb 言い出す.
See also: 言い出す (いいだす)
彼の言い出しで、会議が始まった。
The meeting started with his opening words.
言い出しにくい話だけど、聞いてくれる？
It's a hard topic to bring up, but will you listen?
言い出す is the verb 'to start talking' or 'to bring up a topic'; 言い出し is the noun form referring to the act or the opening words.
Noun form of the verb 言い出す (to speak out, to broach), from 言い (stem of 言う 'to say') + 出す (to take out, to start).