pursuit

[1]	pursuing , chase , pursual , chasing , following , following , hunting , hunt , going/running after , tracing , trailing , tracking , running down , dogging , stalking , shadowing , (Brit) chivvy/chivy/chevy , (Colloq) tailing
[2]	pursuance , pursuance , quest , striving after , seeking , searching , search , looking for
[3]	work , avocation , by-line , line (of work) , employment , hobby , sideline , field , area , spare-time activity , speciality/(US/Canadian) only specialty , specialization , business , profession , trade , vocation , calling , career , life-work , activity , hobby , pastime , avocation , interest , (Slang) racket
[4]	pastime , interest