battery
- 01 A2 Elementary
a device that stores electricity to power things like phones, cars, or toys.
a device consisting of one or more electrochemical cells that convert chemical energy into electrical energy.
Simple“My phone is about to die because the battery is at one percent.”
In context“Modern electric vehicles rely on high-capacity lithium-ion batteries to achieve a range comparable to traditional internal combustion engines.”
Synonyms - 02 B2 Upper Intermediate
a large group of similar things, especially tests or questions.
a coordinated group or series of similar things, often used in the context of psychological or medical testing.
Simple“The doctor ran a battery of tests to find out why I was feeling tired.”
In context“The candidate underwent a rigorous battery of psychological assessments to determine their suitability for the high-pressure role.”
- 03 C1 Advanced
the crime of hitting or physically hurting another person.
the unlawful application of physical force to another person, legally distinct from assault which may only involve a threat.
Simple“The man was arrested and charged with assault and battery after the fight.”
In context“The prosecution struggled to prove battery, as the medical evidence did not conclusively show that the physical contact was non-consensual or harmful.”
- 04 B2 Upper Intermediate
a group of large guns or cannons used together in the army.
a unit of artillery weapons, equipment, and personnel organized to function together.
Simple“The battery of cannons was positioned on the hill to defend the harbour.”
In context“The general ordered the battery to cease fire once the enemy's forward positions had been successfully neutralized.”
- 05 B2 Upper Intermediate
a set of small cages used to keep many chickens in a small space for their eggs.
a series of small, connected cages used for intensive poultry farming.
Simple“Many people prefer to buy free-range eggs instead of those from battery hens.”
In context“Animal welfare groups have long campaigned against the use of battery cages, citing the restricted movement and poor conditions for the birds.”
Antonymsfree range - 06 C1 Advanced
the section of a marching band that plays the drums.
the percussion section of a marching band or drum corps, specifically the instruments carried and played while marching.
Simple“The battery practiced their rhythm in the parking lot before the parade started.”
In context“The judges were particularly impressed by the battery's precision during the complex syncopated movements of the second act.”
Synonymsdrumline
Usage battery life · battery power