Pāli Dictionary
general
親密；親近；熟識
intimacy; close association; familiarity or acquaintance (with someone)
SN 1.31
sabbhi'r'eva samāsetha, sabbhi kubbetha santhavaṃ, sataṃ saddhammam'aññāya, sattā gacchanti suggatin'ti.
Snp 2.2
kodho mado thambho paccupaṭṭhāpanā, māyā usūyā bhassasamussayo ca, mān'ātimāno ca asabbhi santhavo, es'āmagandho na hi maṃsabhojanaṃ.
monastic
性交（「親密」一詞的引申義，多見於律典語境）
sexual intercourse (an extended, euphemistic sense of “intimacy”)
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