| sharp(adjective, severe, intense) |
| tutelage(noun, study, information, discipline, improvement) |
| tutoring(noun, verb, study, discipline, education) |
| apprenticeship(noun, study, discipline, education, instruction) |
| biting(verb, caustic, sarcastic) |
| breeding(study, discipline, education, instruction, training) |
| burrowing(noun, excavating) |
| conditioning(noun, practice, discipline, exercise, repetition) |
| development(noun, study, control, exercise, training) |
| educating(verb, teaching) |
| gimleting |
| guidance(noun, study, information, discipline, improvement) |
| improvement(study, discipline, education, instruction, training) |
| incisive(adjective, sharp, caustic, sarcastic) |
| inculcating(verb, teaching) |
| instructing(verb, teaching) |
| mining |
| nurture(study, discipline, education, instruction, training) |
| oil production(noun, expression, idiom) |
| penetrating(verb, adjective, perforating) |