The term 'assume command' is used to describe the process of taking charge of a situation or group. The four crossword solutions for this term are 'LEAD' (4 letters), 'TAKEOVER' (8 letters), 'takecharge' (10 letters) and 'takecontrol' (11 letters). Each of these words describes the act of assuming command in a different way. 'LEAD' implies that the person is taking the initiative and guiding the group, while 'TAKEOVER' suggests that the person is taking control of the situation from someone else. 'Takecharge' implies that the person is taking responsibility for the situation, and 'takecontrol' implies that the person is taking full control of the situation.