Prolongate and String out

String out and prolongate are semantically related in lengthen topic. In some cases you can use "String out" instead a verb "Prolongate".

String out verb - Set out or stretch in a line, succession, or series.

Prolongate and string out are semantically related in extend topic. You can use "Prolongate" instead a verb "String out", if it concerns topics such as prolong, longer.