⚪️🕳️

#circle hole #empty center #void circle #missing middle #puncture

💮⭕️

#hollow flower #empty center #symbolic flower #circle flower #zero flower

🔵⚪️

#empty circle #blue dot #empty center #two tone circle

🧱⚪️🧱

#hole in wall #pierced through #physical void #empty center #donut hole principle #literal hole #center missing

🪸🕳

#hollow core #empty center #depleted object #core collapse #extracted core #physical core empty #resource depleted

➡️⬜️⬅️

#empty center #space between #void in middle #literal blank #center void

➕🕳️

#hole emoji #empty center #addition with gap #positive void

🌿⭕️

#wreath #green wreath #leaf circle #nature circle #empty center #garland outline #natural ring

⚠️⬜️

#triangle frame #empty center #blank inside #contained blankness

🟥➖⬜

#red square minus inside #subtracting middle #hollowed out square #red border square #empty center