[ eych-vee-ey-see, eych-vak ]
/ ˈeɪtʃˈviˈeɪˈsi, ˈeɪtʃˌvæk /
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heating, ventilation (or ventilating), and air conditioning: The right HVAC system can help regulate the environmental factors inside your home, like air quality, humidity, and temperature.
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
Origin of HVAC
First recorded in 1940–45
Words nearby HVAC
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022