The two differ in their spelling, but do not have different meaning. Axis is the singular form, whereas axes are the plural form of an axis.

Capacitors and inductors are two passive energy storing devices. In capacitors, energy is stored in their electric field. However, in inductors energy is stored in their magnetic field.

An archaeologist deals with the field work that might consist of digging and restoring artifacts, or human-made objects, from ancient ruins. Antiquarians, also known as antiquary, mainly deal with the...

D.B.A. refers to database administrator. He is mainly responsible for settings and management tasks related to a database. The maintenance, optimization, recovery, etc., are included in the profile of a...

A supplier is someone who supplies products to the respective authority, while a trader is one who first buys and then sells the product or currency.