understanding

1 understanding /ˌʌndɚˈstændɪŋ/ noun
1 understanding
/ˌʌndɚˈstændɪŋ/
noun
Britannica Dictionary definition of UNDERSTANDING
1 
: the knowledge and ability to judge a particular situation or subject — usually + of
[singular]
[noncount]
2 
[singular] : an informal agreement
3 
[noncount] : a willingness to understand people's behavior and forgive them
4 
[singular] : your belief about something based on what you have heard, read, etc.

on the understanding that

— used to say that something is done, accepted, etc., because you have been told that something else will happen or is true
2 understanding /ˌʌndɚˈstændɪŋ/ adjective
2 understanding
/ˌʌndɚˈstændɪŋ/
adjective
Britannica Dictionary definition of UNDERSTANDING
[more understanding; most understanding]
: showing sympathy and kindness : tolerant or sympathetic