tack

[1]	pin , attach , fasten , secure , join , couple , unite , combine , stick , fix , affix , staple , nail , skewer , peg , screw , bolt , rivet , baste , stitch , sew , bind , tie , paste , glue , cement , solder , braze , weld
[2]	change direction/heading/course , (Nautical) go/come about , zigzag , veer off/away , (Nautical) beat
[3]	tack on , add (on) , append , annex , attach , tag on
[4]	wear round
[5]	assemble , piece , put together , set up , tack together
[6]	baste
[7]	append , tag on , tack on , hang on
[8]	interchange , switch , alternate , flip , flip-flop

[1]	pin , push-pin , nail , (Brit) drawing-pin , tin-tack , (US) thumbtack
[2]	fastening , stitch , baste
[3]	direction , stable gear , saddlery , bearing , heading , course , approach , way , path , procedure , method , technique , attack , line
[4]	tackle , sheet , mainsheet , gear , equipment , weather sheet , shroud , equipage , harness , saddlery , fittings , fitments , kit , outfit , rig , rigging , accoutrements/(US) accouterments
[5]	tacking