hang on

verbs

fix to; attach

"append a charm to the necklace"

append, hang on, tack, tack on, tag on

be persistent, refuse to stop

"he persisted to call me every night"; "The child persisted and kept asking questions"

hang in, hang on, hold on, persevere, persist

hold the phone line open

"Please hang on while I get your folder"

hang on, hold on, hold the line