Word: Lifespan
Part of Speech: Noun
Definition: The word "lifespan" refers to the length of time that a person, animal, plant, or object is expected to live or function. It describes the period from the beginning of life until death or the end of usefulness.
Usage Instructions:
"Lifespan" is often used to talk about living beings, such as humans and animals, but it can also refer to objects like batteries or products.
When using "lifespan," you might say, "The lifespan of a dog is usually around 10 to 15 years," or "This battery has a short lifespan."
Examples:
Human Context: "Most people have a lifespan of around 70 to 80 years."
Animal Context: "The average lifespan of a goldfish is about 10 years."
Object Context: "The lifespan of a smartphone battery can vary depending on how you use it."
Advanced Usage:
You might encounter "lifespan" in scientific or medical discussions. For example, "Research shows that lifestyle choices can significantly affect a person's lifespan."
In ecological studies, you might hear, "The lifespan of a tree can be hundreds of years, contributing to its ecosystem."
Word Variants:
Lifespan (noun) - the main form.
Life expectancy (noun) - often used interchangeably, but typically refers to the average lifespan of a population.
Lifelong (adjective) - means lasting for the duration of a person's life (e.g., "She has a lifelong passion for music.").
Different Meanings:
Synonyms:
Duration
Lifetime
Lifespan expectancy
Existence period
Idioms and Phrasal Verbs:
Summary:
"Lifespan" is a simple yet important term that helps us understand how long things live or function.