The traditional application of an LMS is in educational institutions. Learning management systems have been used for several years to deliver courseware in schools and popularize e-learning.
As verbs the difference between cane and crutch. is that cane is to strike or beat with a cane or similar implement while crutch is to support on crutches; to prop up.
The main difference between helicopter and chopper is that chopper is more causal than helicopter and used by media and business men for personal purposes while helicopter is used by professional pilots or soldiers of army.