tumble

1 tumble /ˈtʌmbəl/ verb
tumbles; tumbled; tumbling
1 tumble
/ˈtʌmbəl/
verb
tumbles; tumbled; tumbling
Britannica Dictionary definition of TUMBLE
[no object]
1 
a  : to fall down suddenly and quickly
b  : to fall forward while turning over
2 
: to fall or drop suddenly in amount, value, etc.
3 
always followed by an adverb or preposition : to move in a fast, confused, or uncontrolled way
4 
: to roll or turn your body across the ground or through the air while performing a series of athletic movements
5 
of hair : to fall or hang down loosely

tumble to

[phrasal verb]
tumble to (something) British, informal
: to understand or become aware of (something)
2 tumble /ˈtʌmbəl/ noun
plural tumbles
2 tumble
/ˈtʌmbəl/
noun
plural tumbles
Britannica Dictionary definition of TUMBLE
[count]
1 
: an act of falling or tumbling
— see also rough-and-tumble
2 
: an athletic movement in which you roll or turn your body across the ground or through the air