hold on

definition: be persistent, refuse to stop
example:
speech part: verb
synonyms: persevere
definition: stop and wait, as if awaiting further instructions or developments
example:
speech part: verb
synonyms: stop
definition: hold the phone line open
example:
speech part: verb
synonyms: hang on
definition: hold firmly
example:
speech part: verb
synonyms: grasp
definition: retain possession of
example:
speech part: verb
synonyms: keep

How hold on is being used?