This is the 189th most frequent Italian word.
lungo
"Lungo" means "long" in English.
In this sentence, 'lungo' is used as a preposition meaning 'along'.
Abbiamo camminato lungo il fiume.
We walked along the river.
Here, 'lungo' functions as an adjective describing the meeting's duration.
L'incontro è stato molto lungo.
The meeting was very long.
In this example, 'lungo' is used as an adjective indicating the relative length of the cable.