modulate

"The child's swing reached its highest point, demonstrating the amplitude of her arc. "

"The violinist was a master of her instrument."

"My sister is very helpful, especially when it comes to organizing things. "

"My family has a different ideal for my future than I do. "

"The student's progression from beginner to advanced level took two years of study. "

"The computer technician fixed the broken printer in the school library. "

"The teacher modulated her voice to be quieter when the students were working independently. "

"The frequency of bus service has been improved from one every 15 to one every 12 minutes."

"The intensity of the music made it hard to concentrate on my homework. "

"The proportion of students who chose math as their favorite subject was quite high. "

"The presentation about the new school rules was very clear and easy to understand. "

"emotional crisis"