Hindrance. –N. prevention, preclusion, obstruction, stoppage, prohibition, interruption, interception, impedition, constriciton, embarrassment, stricture, restriction, anchor, restraint, inhibition, blockade, picketing, interference, obtrusion, discouragement, opposition, obstacle, grit in the oil, screw loose, wall, breakwater, stile, barrier, parapet, boom, dam, drawback, objection, stumbling block, lion in the pth, clog, skid, spoke, brake, contraception, load, burden, dead weight, nightmare, incubus, difficulty, estoppel, ill wind, head wind, trammel, tether, killjoy, dog in the manger, trail of a red herring, opponent.
Aid. –N. assistance, help, succour, support, lift, advance, furtherance, promotion, patronage, championship, countenance, favour, interest, advocacy, auspices, subvention, subsidy, bounty, alimentation, nutrition, nourishment, maintenance, manna in the wilderness, food, means, ministry, accommodation, relief, rescue, deus ex machina, supplies, reinforcements, contingents, recruits, suport, adjunct, ally.
Thesaurus of Words and Phrases by Peter Mark Roget, M.D., F.R.S. Enlarged by John Lewis Roget, M.A., New Edition Revised and Enlarged by Samuel Romily Roget, M.A. Published by Grosset & Dunlap, the edition is copyright 1941, 1947.
Photo taken in Lippitt House Museum, Providence, RI