to+boot
131boot camp — ☆ boot camp n. [orig., bootneck, a Marine, in reference to the leather collar of the uniform; later contr. in use for a Marine recruit, then for a trainee more generally] a station where Navy or Marine recruits receive basic training …
132boot training — boot training, U.S. Informal. 1. the training of recruits in the U.S. Navy, Marine Corps, or Coast Guard. 2. the period of this training …
