1. From end to end, or from side to side; noting passage; by transmission; by means of; by the agency of; by reason of; over the whole surface of; by passing among or in the midst of.

2. From one end or side to the other; from beginning to end; to the ultimate purpose. To carry through, to accomplish. To go through, to prosecute a scheme to the end; to undergo. See Thorough.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• throyght,
• thruogh,
• theough,
• thgrough,
• thourh,
• thruough,
• throuwn,
• thouugh,
• throguh,
• thrhough,
• tyhrough,
• throughl,
• throutgh,
• therough,
• thorouygh,
• thorouh,
• throiough,
• gothrough,
• througj,
• thouygh

• trough,
• theroux,
• throughway,
• thorough.

The adverb form of "through" is "throughout".

The adjective form of the word "through" is "throughout".

The plural form of "through" is "throughs". However, it is not commonly used, and other expressions are usually used instead.

The singular form of the word "through" is "thoroughfare"