Simple past tense and past participle of solidify.(verb)
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Use "solidified" in a sentence
"The drive to Milwaukee once again solidified my loathing of Illinois."
"CALGARY, Alberta (Ticker) -- Rookie Oleg Saprykin solidified his spot on the team with a power-play goal and Valeri Bure scored twice as the Calgary Flames held on for a 4-3 exhibition victory over the Edmonton Oilers."
"The silica did not crystallize, but solidified from a gel to form microscopic spheres."