with (suomeksi)

kanssa (prep: in the company of / luona)
-lla (prep: välineellä / by means of)
kera (prep: in the company of / in addition to)
luona (prep: in the company of)
-ineen (prep: in the company of / luona / comitative case / in addition to / kera / comitative case)
avulla (prep: in support of)
-llä (prep: by means of / -lla / adessive case)
-in (prep: by means of / -lla-llä / instructive case)
Sana perusmuodossa: withe