inhale
v.to breathe air, smoke, or gas into your lungs. You use this when talking about breathing or sometimes when someone eats food very quickly.
v.to draw air or other substances into the lungs through the respiratory tract. Often used figuratively in informal contexts to describe consuming food with extreme haste.
“Take a deep breath and inhale slowly.”
“The doctor asked the patient to inhale deeply while she listened to his chest with a stethoscope.”
“Safety protocols require all laboratory staff to wear masks to ensure they do not accidentally inhale toxic fumes during the chemical synthesis process.”
The verb can be used both transitively and intransitively.
When used with an object, inhale is transitive and does not require a preposition like 'to' or 'at'.
From Latin inhalare (“to breathe on (breathe in)”), from in (“in, into, on”) + halare (“to breathe”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.