Membrane.
Swine rhymes with line.
crane-kick
orangey face
Oh, dude, I got you! The animal's name that rhymes with "train" is "crane." Like, you know, those tall birds with long necks that are all graceful and stuff. So, yeah, "crane" is the answer you're looking for.
rain, main, mane, pain, pane, stain
chain, crane
pink eye
Eye flick
as far as the eye can see
Eye on the prize... i want it super sized
cane, plain, main, train, plane, crane, strain, lane,
retina (part in your eye)