25B6; adjective a heart-to-heart chat : INTIMATE, personal, man-to-man, woman-to-woman; candid, honest, truthful, sincere.
25B6; noun they had a long heart-to-heart : PRIVATE CONVERSATION, tête-à-tête, one-to-one, head-to-head; chat, talk, word; informal confab; Brit. informal natter, chinwag.