learn the ropes

Of nautical origin: in the past, the phrase “he knows the ropes” written on a seaman’s discharge meant that he was inexperienced and only familiar with a ship’s principal ropes.[1]

learn the ropes (third-person singular simple present learns the ropes, present participle learning the ropes, simple past and past participle learned the ropes or learnt the ropes)

1. (originally nautical, informal) To learn the basics or master introductory knowledge.

   Work slowly and cautiously until you have learned the ropes.

2. (informal) To learn some skill requiring specialist knowledge.

• know the ropes
• show one the ropes
• teach one the ropes

• cut one's teeth
• trick of the trade