acculturate, advance, ameliorate, amend, arrow, arrow for, be straight, better, boost, bring forward, civilize, edify, educate, elevate, emend, enhance, enlighten, enrich, fatten, favor, follow a course, forward, foster, go directly, go straight
on, have no turning, head straight for, hold steady for, improve, improve upon, keep pointed, lard, lift, make a beeline, make an improvement, meliorate, mend, nurture, promote, raise, refine upon, reform, socialize, straighten out, transfigure, transform, upgrade, uplift, vector for
keep in a middle course, preserve a middle course, preserve an even course, go straight
, go halfway, compromise, make a compromise.
be straight, have no turning, not incline to either side, not bend to either side, not turn to either side, not deviate to either side, go straight
, steer for, render straight, straighten, rectify, set straight, put straight, unbend, unfold, uncurl &c, unravel, unwrap.