upgrade

/ˈʌp.ɡɹeɪd/

ɅP · ɡɹeɪd (2 syllables)

English Noun Top 11,747

Definition

An upward grade or slope.

From up- + grade.

"The Worthens sighed with relief as the engine began its night of upgrade chugging."
"Near-synonym: option"
"With my phone company, I get a free upgrade every twelve months if I keep topping up 10 pounds a month."