Sense: {{{2}}}Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "to make something hard or harder" is not valid. See WT:LOL and WT:LOL/E.
Synonyms
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "anneal" is not valid. See WT:LOL and WT:LOL/E.(figuratively, archaic or poetic)
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "harden" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "indurate" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "obdurate" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "sclerotise" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "solidify" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "steel" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "stiffen" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "temper" is not valid. See WT:LOL and WT:LOL/E.
Antonyms
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "soften" is not valid. See WT:LOL and WT:LOL/E.
Hyponyms
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "freeze" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "ossify" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "petrify" is not valid. See WT:LOL and WT:LOL/E.
Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "vitrify" is not valid. See WT:LOL and WT:LOL/E.
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Lua error in Module:parameters at line 360: Parameter 1 should be a valid language or etymology language code; the value "ruggedize" is not valid. See WT:LOL and WT:LOL/E.