48. HARD
adamant 2 apple 3 apples 1
bad 2 ball 5 baseball 1 bed 1 bench 1 blackboard 1 board 6 boards 2 bone 1 bread 1 break 1 brick 12 brittle 2 bullet 2
cabbage 2 callous 1 candy 2 can't 1 chair 3 character 1 coal 7 coarse 1 cold 1 crystallized 1
dense 1 diamond 3 difficult 5 disagreeable 1 do 1 durability 1
earth 1 earthen 1 easy 17 egg 7 eggs 1 examination 2
fare 1 farmer 1 faery 1 feeling 4 firm 11 firmness 7 fist 1 flint 1 floor 10 formidable 1 fruit 1
glass 2 glittering 1 gold 1 good 2 granite 1 ground 2
hammer 1 harsh 2 heart 2 hearted 2 heavy 2 hickory 1 hurt 1
ice 8 immovable 1 impenetrable 1 indestructible 1 individual 1 indurated 1 inflexible 1 injustice 1 icksome 1 iron 44
kind 1
labor 1 lead 2 lesson 2 lignum-vitae 1 life 2 low 1
hick 3
maple 1 marble 3 mathematics 1 mean 2 medium 2 metal 5 murder 1 mush 1
nail 1 nails 1 natural 1 nut 1 nuts 1
oak 1 opaque 1
pavement 2 perplexing 1 physics 1 piano 1 principle 1 pulpy 1
quality 1 questions 1
raining 1 resistance 4 resistant 1 rigid 1 road 1 rock 38 rocks 4 rocky 1 rough 11
saltpetre 1 severe 1 sidewalk 1 smooth 15 soft 367 solid 15 stale 1 steel 14 stick 1 stingy 1 stone 102 stones 1 stony 1 stove 2 strength 1 strong 4 stuff 1 substance 6
table 5 tack 1 thick 1 tight 1 touch 2 tough 12 tree 2 trouble 1 turnip 1
unbreakable 5 uncomfortable 5 uneasy 1 unimpressionable 1 unpleasant 2 unpliable 1 unripe 1 unyielding 1 uselessness 1
very 1
walnuts 1 water 2 wisdom 1 wood 66 work 19 working 2