Reading Theme:
Expectancy: Definition, Usage & Key Examples (2 meaning)
Meaning 1：the feeling of anticipation (expectancy)
expectancy
/ɪkˈspek.tən.si/
n.
The feeling of thinking or hoping that something, especially something good, will happen.
the feeling of anticipation
➕
/ðə ˈfiː.lɪŋ əv ænˌtɪs.ɪˈpeɪ.ʃən/
n.
A mental and emotional state characterized by looking forward to a future event, typically with hope or excitement.
📘 Details & Usage
📖 Root Explanation
From Latin ‘expectare’ (await, look out for) + suffix ‘-ancy’ (state or quality).
💡 Mnemonic
It's the **ANCY** (state) of **EXPECT**ing something to happen.
📖 Example
There was a palpable expectancy in the air as everyone waited for the sunrise.
A tangible feeling of anticipation filled the atmosphere while everyone awaited the sunrise.
🔗 Collocations
air of expectancy – A pervasive atmosphere of anticipation.
sense of expectancy – A subjective feeling of anticipation.
tense expectancy – Anxiety-tinged anticipation.
🔄 Synonyms
anticipation (n.) – The act of looking forward, especially with eagerness.
expectation (n.) – A strong belief that something will happen.
hope (n.) – A feeling of desire for a certain thing to happen.
🚫 Antonyms
despair (n.) – The complete loss or absence of hope.
dread (n.) – Great fear or apprehension about something in the future.
indifference (n.) – Lack of interest, concern, or expectation.
🌱 Derivatives
expectant (adj.) – Having or showing an excited feeling that something is about to happen, especially something good.
expectantly (adv.) – In a way that shows you are expecting something to happen.
📖 Cultural Story
Derived from the Latin ‘expectare,’ meaning to await or look out for. The term entered English in the 18th century, evolving to denote a state of anticipation. It holds specific weight in actuarial science and demographics where ‘life expectancy’ is a critical statistical measure of population health.
Meaning 2：average life span (expectancy)
expectancy
/ɪkˈspek.tən.si/
n.
The average number of years a person is expected to live.
average life span
➕
/ˈæv.ər.ɪdʒ laɪf spæn/
n.
A statistical estimate of the average number of years a person is predicted to live, based on demographic data for a given population and time period.
📘 Details & Usage
📖 Example
According to the health report, the average life expectancy in the country has increased by five years.
The health report indicates that the average predicted lifespan in the nation has risen by five years.
🔗 Collocations
life expectancy – The average period a person is expected to live.
life expectancy at birth – The average number of years a newborn is expected to live.
life expectancy gap – The difference in average lifespan between different demographic groups.
🔄 Synonyms
life span (n.) – The length of time for which a person or organism lives.
longevity (n.) – Long life or the length of a person's life.
survival rate (n.) – The percentage of a population that survives for a given period.
🚫 Antonyms
infant mortality (n.) – The death of children under one year of age.
premature death (n.) – Death that occurs before the average age of death in a population.
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