close interaction

the act of touching physically

the state or condition of touching or of being in immediate proximity

the physical coming together of two or more things

a person who is in a position to give you special assistance

a channel for communication between groups

(electronics) a junction where things (as two electrical conductors) touch or are in physical contact

a communicative interaction

a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication