But just one athlete can make this jump! (6)
I believe the answer is:
triple
This could be a double definition.
'but just one athlete can' is the first definition.
The definition and answer can be both related to change as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'this jump' is the second definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'make' acts as a link.
Can you help me to learn more?
(Other definitions for triple that I've seen before include "make much longer" , "Increase threefold" , "Consisting of three" , "Three times" , "Multiply by three" .)