stumble
stum|ble /st'ʌmbəl/ (stumbles stumbling stumbled)
1 [VERB] V, V prep/adv
If you stumble, you put your foot down awkwardly while you are walking or running and nearly fall over.
He stumbled and almost fell...
I stumbled into the telephone box and dialed 999.
[N-COUNT] usu sing
Stumble is also a noun.
I make it into the darkness with only one stumble.
2 [VERB] V over n, also V
If you stumble while you are reading aloud or speaking, you make a mistake, and have to pause before saying the words properly.
...his voice wavered and he stumbled over the words at one point.stumble across
or stumble on
[PHRASAL VERB] V P n, V P n
If you stumble across something or stumble on it, you find it or discover it unexpectedly.
I stumbled across an extremely simple but very exact method for understanding where my money went...
History relates that they stumbled on a magnificent waterfall.
= come across
1 [VERB] V, V prep/adv
If you stumble, you put your foot down awkwardly while you are walking or running and nearly fall over.
He stumbled and almost fell...
I stumbled into the telephone box and dialed 999.
[N-COUNT] usu sing
Stumble is also a noun.
I make it into the darkness with only one stumble.
2 [VERB] V over n, also V
If you stumble while you are reading aloud or speaking, you make a mistake, and have to pause before saying the words properly.
...his voice wavered and he stumbled over the words at one point.stumble across
or stumble on
[PHRASAL VERB] V P n, V P n
If you stumble across something or stumble on it, you find it or discover it unexpectedly.
I stumbled across an extremely simple but very exact method for understanding where my money went...
History relates that they stumbled on a magnificent waterfall.
= come across