Meaning: The crickets made sharp, short sounds at the same time.
Choice of Words: The word "chirped" means to make a sharp, short sound like a cricket. "Crickets" are small, jumping insects. "In" means in or within. "Unison" means at the same time.
Alternative Expressions
The crickets made a symphony of sound.
Meaning: This means that the crickets were making a beautiful and harmonious sound together, like a symphony.
Choice of Words:Symphony is a word for a beautiful piece of music played by an orchestra. Sound is anything that you can hear. When you put them together, "symphony of sound" means a beautiful combination of sounds.
The crickets' chorus filled the air.
Meaning: This means that the crickets were singing so loudly that their sound filled the entire area.
Choice of Words:Chorus is a group of singers or musicians who sing or play together. Filled means to make something full. Air is the invisible gas that we breathe. When you put them together, "chorus filled the air" means that the crickets' singing filled the space around them.