Definitions
01anniversary of birth
A1 · Beginner Countable noun
n. the day each year that is the same date as the day you were born.
n. the annual anniversary of the day on which a person was born.
日本語:誕生日※
“She received many cards and presents for her tenth birthday.”
“Although he usually dislikes being the centre of attention, he agreed to a small family dinner to mark his fiftieth birthday.”
Usage
often used with the verbs 'be', 'have', or 'celebrate'
Pitfall
I have birthday today.
It is my birthday today.
In English, we usually say 'It is my birthday' or 'Today is my birthday' rather than 'I have birthday'.
Synonyms
02a party
A2 · Elementary Countable noun Informal
n. a party or celebration for someone's birthday.
n. a social gathering or celebratory event held to commemorate a birth anniversary.
“Are you coming to my birthday next Saturday night?”
“The entire office was invited to the surprise birthday held in the staff lounge during the lunch hour.”
Synonyms
03founding anniversary
B2 · Upper Intermediate Countable noun
n. the anniversary of the day something like a company or country started.
n. the anniversary of the day on which an institution, organization, or nation was established.
“The city is planning a huge parade for its 200th birthday.”
“The university celebrated its centenary birthday with a series of lectures and a formal gala for alumni.”
Synonyms
04to celebrate
C2 · Proficiency Informal · Slang
v. to celebrate your birthday.
v. to engage in festivities or activities associated with one's birth anniversary. Intransitive use.
“We are going to birthday in the city this weekend.”
“The group decided to birthday in style by booking a private suite at the most expensive hotel in the district.”
Usage
the verb is intransitive and does not take a direct object
Etymology
From Middle English birthdai, birtheday, from Old English ġebyrddæġ (“birthday”), influenced by Old Norse burðr, equivalent to birth + day. Compare Saterland Frisian Gebuursdai (“birthday”), Dutch geboortedag (“birthday”), Low German Geboortsdag (“birthday”), German Geburtstag (“birthday”), Norwegian bursdag, gebursdag (“birthday”). Eclipsed non-native Middle English nativitee (“birth, nativity, birthday”), from Old French nativité, nativited, from Latin nātīvitas.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Idioms
01. birthday suit
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
- Frequency
- Common
- Level
- A1 · BeginnerOxford
- Updated
- アルファベット
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QR code
englishreference.com/q/birthday
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「日本語」「カタカナ語」 data: JMdict (EDRDG), CC BY-SA 4.0