The concept of string theory in physics is complex.
string instrument
Frequency:
60
%
The violin is a popular string instrument.
puppet strings
Frequency:
40
%
He controlled the puppet with invisible strings.
string of pearls
Frequency:
35
%
She wore a beautiful string of pearls around her neck.
shoelace string
Frequency:
25
%
Her shoelace string broke while she was running.
Idiomatic Expressions for string
Phrase: on a shoestring
Meaning: having a very limited budget or resources
Usage: They managed to start their business on a shoestring and grew it into a successful company.