mutual understanding; communication
Refers to a state where intentions or thoughts are understood between people; often used in contexts of teamwork, relationships, or negotiations.
See also: 意思疎通
Communication didn't go well, and the project was delayed.
It's important to strive for mutual understanding between husband and wife.
Standard spelling; 意思 (intention) is the most common kanji for this expression.
Variant using 意志 (will/volition); less common but acceptable.
Compound of 意思 (intention) + の (possessive particle) + 疎通 (mutual understanding/communication). The phrase literally means 'communication of intentions'.