tighten up

Found in Anh - Anh (Wordnet)

Definition Verb : 1. To make something stricter, more controlled, or more efficient : To reduce flexibility or leniency in rules, procedures, or operations; to make something more rigorous or taut. 2. To become stricter or more tense : To undergo a process of becoming more controlled, rigid, or efficient. Usage and Examples Verb (Transitive) : To make an external system, rule, or object more st...