| endeavor(noun, go, work, struggle, try) |
| enlighten(verb, study, develop, improve, prepare) |
| enterprise |
| equip(verb, study, develop, improve, prepare) |
| essay(noun, study, work, check, measure) |
| establishment(noun, organization, study, increase, plan) |
| evaluation(noun, check, approval, examination, standard) |
| evolution(noun, organization, study, increase, plan) |
| examination(noun, study, check, measure, struggle) |
| exert(verb, break, set, develop, improve) |
| exertion(work, try, attempt) |
| expectation(noun, organization, study, increase, plan) |
| experimentation(noun, study, measure, struggle, examination) |
| fitting(noun, organization, study, increase, plan) |
| fix(verb, break, develop, improve, prepare) |
| flight test |
| fling(noun, study, go, check, measure) |
| fluid operations |
| foresight(noun, organization, study, increase, plan) |
| formation(noun, organization, study, increase, plan) |