simple past tense and past participle of reinforce
"The engineer reinforced the bridge pillars before the heavy storm arrived."
In plain English: To reinforce something means to make it stronger by adding more support or material to it.
"The coach reinforced his advice by reminding the team to stay focused."
given added strength or support
"reinforced concrete contains steel bars or metal netting"
(used of soaps or cleaning agents) having a substance (an abrasive or filler) added to increase effectiveness
"the built liquid detergents"
having been or containing reinforcement
"The concrete wall was reinforced with steel bars to withstand earthquakes."
In plain English: Reinforced means something has been made stronger by adding extra material to it.
"The reinforced concrete walls kept the building standing after the earthquake."
The word reinforced comes from combining the verb reinforce with the past tense suffix -ed. It is formed by adding a common grammatical ending to indicate that an action has been completed.