1. (

• chase ,
• chase_after ,
• trail ,
• tail ,
• tag ,
• give_chase ,
• dog ,
• go_after ,
• track

) go after with the intent to catch; "The policeman chased the mugger down the alley"; "the dog chased the rabbit" ;

1. (

• dogged ,
• dour ,
• persistent ,
• pertinacious ,
• tenacious ,
• unyielding

) stubbornly unyielding; "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot; "men tenacious of opinion" ;