(with into) to investigate thoroughly
(with adverbial of direction) to move underneath or press up against in search of safety or comfort
to dig a tunnel or hole
A tunnel or hole, often as dug by a small creature.
A heap or heaps of rubbish or refuse.
To look intently into; examine; inspect.
To see or look under or below; see below the surface of.
To neglect; fail to see properly or adequately; turn a blind eye to; ignore.