study

[1]	learn (about) , read , con , memorize , burn the midnight oil , lucubrate , (Colloq) bone up (on) , cram , (Brit) swot/swat , mug up
[2]	contemplate , consider , reflect on , think over/about , ruminate on , chew over , turn over , weigh , ponder , deliberate over/on/about , muse about/on , mull over , meditate on/about/over
[3]	look/go into/over , look at , scan , examine , analyse , inspect , investigate , scrutinize , survey , observe
[4]	analyze , analyse , examine , canvass , canvas
[5]	consider
[6]	learn , read , take
[7]	hit the books
[8]	meditate , contemplate

[1]	survey
[2]	work
[3]	report , written report
[4]	analysis , review , examination , survey , inquiry/enquiry , investigation , scrutiny , research , exploration
[5]	learning , lessons , bookwork , work , reading , contemplation , investigation , (Colloq) boning up , cramming , (Brit) swotting/swatting
[6]	library , discipline , subject , reading/writing-room , sanctum (sanctorum) , subject area , subject field , haunt , studio , field , field of study , retreat , den , bailiwick , workroom , office
[7]	sketch
[8]	cogitation