3. By means of; by the agency of.
Through these hands this science has passed with great applause. Sir
W. Temple.
Material things are presented only through their senses. Cheyne.

4. Over the whole surface or extent of; as, to ride through the country; to look through an account.

5. Among or in the midst of; — used to denote passage; as, a fish swims through the water; the light glimmers through a thicket.

6. From the beginning to the end of; to the end or conclusion of; as, through life; through the year.

THROUGH
Through, adv.

1. From one end or side to the other; as, to pierce a thing through.

2. From beginning to end; as, to read a letter through.

3. To the end; to a conclusion; to the ultimate purpose; as, to carry a project through.

Note: Through was formerly used to form compound adjectives where we now use thorough; as, through-bred; through-lighted; through-placed, etc. To drop through, to fall through; to come to naught; to fail. — To fall through. See under Fall, v. i.

THROUGH
Through, a.