The term 'They Know the Ropes' is a phrase used to describe someone who is experienced and knowledgeable in a particular field. The crossword solutions for this term are Lassoers (8 letters), Pros (4 letters), and Oldpros (7 letters). Lassoers are people who use a lasso to capture animals or herd them, while Pros are experts in their field. Oldpros are experienced professionals who have been in the field for a long time and have a great deal of knowledge.