Bring up and Touch on

Bring up verb - To bring to maturity through care and education.

Touch on and bring up are semantically related in initiate topic. In some cases you can use "Touch on" instead a verb "Bring up".

Touch on verb - Refer to or discuss briefly.

Bring up and touch on are semantically related in refer to topic. You can use "Bring up" instead a verb "Touch on", if it concerns topics such as suggest, mention, bring up a topic.