To restrain something that is growing or increasing means to prevent it from getting too large. The radical 500-day plan was very clear on how it intended to try to restrain inflation = check
to close within bounds, limit or hold back from movement; "This holds the local until the express passengers change trains"; "About a dozen animals were held inside the stockade"; "The illegal immigrants were held at a detention center"; "The terrorists held the journalists for ransom"
keep under control; keep in check; "suppress a smile"; "Keep your temper"; "keep your cool"
If you restrain someone, you stop them from doing what they intended or wanted to do, usually by using your physical strength. Wally gripped my arm, partly to restrain me and partly to reassure me
keep under control; keep in check; "suppress a smile"; "Keep your temper"; "keep your cool
If you restrain an emotion or you restrain yourself from doing something, you prevent yourself from showing that emotion or doing what you wanted or intended to do. She was unable to restrain her desperate anger Gladys wanted to ask, `Aren't you angry with him?' But she restrained herself from doing so
To draw back again; to hold back from acting, proceeding, or advancing, either by physical or moral force, or by any interposing obstacle; to repress or suppress; to keep down; to curb