• American Pronunciation: In American English, "adrenaline" is pronounced as /əˈdrɛnəlɪn/. It has four syllables, with the stress on the second syllable: uh-DREN-uh-lin. The "uh" is a very soft and short sound, "DREN" is emphasized and rhymes with "hen," "uh" in the third syllable is soft, and "lin" resembles "lin" in "linen."
• British Pronunciation: In British English, "adrenaline" is also pronounced as /əˈdrɛnəlɪn/. The pronunciation is similar to the American version, but with potentially clearer articulation of the vowels and the final "n" may be slightly crisper.
  

Adrenaline (noun) is a hormone produced by the body in response to stress or danger, causing increased heart rate, heightened alertness, and a surge of energy. It is often referred to as the "fight or flight" hormone.

Example 1: The rush of adrenaline helped the athlete push through the race and finish first.
Example 2: My heart was pounding with adrenaline as I stood on the edge of the cliff, ready to bungee jump.
Example 3: The rollercoaster ride was full of twists and turns that left me with a burst of adrenaline.
Example 4: The firefighters were pumped with adrenaline as they ran into the burning building to save the trapped victims.
Example 5: The comedian thrived off the adrenaline from the audience's laughter during his stand-up performance.