add
/æd/ (bre, ipa) · /æd/ (ame, ipa) · /ˈad/ (ame, mw) · /ˌeɪ.diːˈdiː/ (bre, ipa) · /ˌeɪ.diːˈdiː/ (ame, ipa)
add — verb
1. to do the calculation that joins several figures into one total result.
to do the calculation that joins several figures into one total result.
If you add 27 and 36 carefully, you will get 63.
add + number + and + number for arithmetic
Mei Lin asked her son to add the prices on the receipt.
The cashier added the bill quickly in her head.
Children at the school learn to add and subtract using small wooden blocks.
Please add these four numbers together and tell me the answer.
文法句型
add + numbers
add + numbers + together
add + number + to + number
用法筆記
Frequently paired with 'up' (add up the bill) or 'together' (add the numbers together). Distinguish from sense 2: this sense is purely arithmetic, not about putting physical things with other things.
常見錯誤
2. to put one thing together with another so that the group becomes bigger, the amo
to put one thing together with another so that the group becomes bigger, the amount grows, or the result becomes better.
Gita added a spoonful of sugar to his coffee.
add + object + to + container/recipient
The chef added fresh basil to the tomato sauce.
Omar added his cousin's name to the guest list.
A small fountain in the courtyard added charm to the old hotel.
If you add some salt, the soup will taste much better.
文法句型
add + something + to + something
add + something + into + something
用法筆記
Object can be physical (sugar, basil) or abstract (charm, value, weight). The preposition 'to' marks the recipient. Distinguish from sense 1: here things are joined physically or to a list, not calculated.
常見錯誤
3. to say one more thing after you have already spoken, often to give extra informa
to say one more thing after you have already spoken, often to give extra information or a final comment.
Dr. Mira explained the test results, and added that more rest would help.
add + that-clause for extra information
'And don't forget your umbrella,' Grandma added as Sofia left the house.
add + direct quotation in dialogue
The coach praised the team and added a few words about next week's match.
I'd like to add that the report was finished ahead of schedule.
文法句型
add + that-clause
add + direct quotation
add + ', she said'
用法筆記
Common in reported speech, especially after 'and'. Often introduces a final clarifying or polite remark. Distinguish from senses 1 and 2: here the object is words, not numbers or things.
常見錯誤
add — noun
1. short for 'attention deficit disorder' — an older medical label, popular during
short for 'attention deficit disorder' — an older medical label, popular during the 1980s, describing someone (often a young child) who finds it difficult to sit still and focus on a single task.
Doctors in the 1980s often diagnosed restless children with ADD.
diagnosed with ADD
Mr. Rivera's son was told he had ADD when he was seven years old.
Today, most doctors use the term ADHD instead of ADD.
Lisa's teacher suggested testing for ADD after she struggled to finish any task in class.
- ADHD
the modern medical term, includes hyperactivity
- attention deficit disorder
the full form; same meaning but more formal
文法句型
have ADD
be diagnosed with ADD
用法筆記
Largely replaced in current medical use by 'ADHD' (attention deficit hyperactivity disorder). Still seen in older books, articles, and casual speech. Treat as an uncountable noun: 'have ADD', not 'have an ADD'.
常見錯誤
add — abbreviation
1. short written form of 'attention deficit disorder', a medical condition affectin
short written form of 'attention deficit disorder', a medical condition affecting a person's ability to stay focused.
On the school report, Diego saw the letters ADD next to a teacher's note.
abbreviation usage in writing
The clinic's sign listed ADD among the conditions it could diagnose.
Many older medical books use the abbreviation ADD instead of ADHD.
The school nurse wrote ADD on the small green form for Sofia's mother.
- ADHD
newer abbreviation, includes hyperactivity component
文法句型
ADD = attention deficit disorder
用法筆記
Always written in capital letters. In current medicine, the abbreviation 'ADHD' is more common. Distinguish from the verb 'add' (to put together): the abbreviation is pronounced as three letters, A-D-D.