ISO 4306-1 eliminates this ambiguity by providing:
Cranes - Vocabulary - Part 1: General, Published by ISO, 2007-10-15 Google ISO 4306-1:2007 - Cranes — Vocabulary — Part 1: General
The primary function of ISO 4306-1 is to establish a shared language for crane manufacturers, operators, and safety inspectors. It defines terms related to: