IPA: /ˌkɒn.tɛm.pləˈteɪ.ʃən/
KK: /kɒnˈtɛmpləˌteɪʃən/
The act of thinking deeply about something, often in a serious or reflective way.
She spent hours in contemplation, considering her future and the choices she needed to make.
Contemplation is formed from "con-" (meaning together) and "templari" (meaning to consider or to contemplate). The word describes the act of considering or thinking deeply about something together with a focus or intention.
Think of 'together' ('con-') and 'considering' ('templari') something deeply — that's what contemplation means.