Definition of touchpoint in English:
touchpoint
noun ˈtʌtʃpɔɪntˈtəCHˌpoint
1A point of contact or interaction, especially between a business and its customers or consumers.
every touchpoint must reflect, reinforce, and reiterate your core brand strategy
2A point of reference.
one of the cultural touchpoints for the late 1990s
3A touch-sensitive area on an electronic device.
4A time, condition, or circumstance that is vulnerable or unstable enough to precipitate a highly unfavourable, possibly devastating outcome.
a touchpoint for world conflagration
5Psychology
The time in a child's development that precedes an appreciable leap in physical, emotional, or cognitive growth.