Most people hunting for an input synonym are writing to a colleague, so the top picks are feedback, thoughts, ideas, suggestions and contribution. In technical writing, input usually means data or an entry, and the verb means to enter or key in.
Below you will see how these words differ in timing and tone, which ones take a plural, and how to ask for input without sounding stiff. The opposite word, output, is covered too.
Swatch at a glance
Best swaps
feedback, thoughts, suggestions, contribution, dataPart of speech
Noun (mostly uncountable) and verbMost formal
recommendations, insightMost casual
two cents, thoughtsAntonyms
output, resultWord forms covered
inputs, inputted or input, inputtingWatch out
Feedback reacts to work already done. Input is usually asked for before a decision.
Input synonym options for each setting
| Setting | Swap | Line you might write |
|---|---|---|
| Planning a project | ideas, suggestions, thoughts | Any ideas for the spring campaign? |
| Reviewing a draft | feedback, comments | Please add comments by Friday. |
| Group effort | contribution, effort | Thanks for your contribution to the report. |
| Expert view | advice, insight, guidance | We need legal advice on the lease. |
| Software or science | data, entry, readings | The sensor readings looked odd. |
From thoughts to recommendations
The chips for input run from a relaxed request to a formal one. Thoughts is friendly and open. Ideas asks people to create something. Comments invites short reactions. Feedback is the standard office word for responses to work in progress. Recommendations asks for a clear course of action and suits consultants and committees.
Two cents is jokey and modest, as in "here are my two cents." Use it with peers, not with a client you have just met.
Input, rewritten in work emails
- I would value your input becomes I would value your thoughts.
- Thanks for your input on the budget becomes thanks for your suggestions on the budget.
- We need input from the sales team becomes we need the sales team's view.
- Her input made the plan stronger becomes her contribution made the plan stronger.
- Input the figures into the sheet becomes enter the figures into the sheet.
- The model needs more input becomes the model needs more data.
A team lead types: "Please provide input on the attached." It feels like a form. "Could you look at the attached and tell me what you would change?" asks the same thing, but people are more likely to reply with real detail.
Countable or not? Grammar for input and its swaps
In the sense of opinions, input is usually uncountable: you ask for some input, not an input. Advice and feedback work the same way. Suggestions, ideas, comments and thoughts are countable, so they take a plural and a number: three suggestions.
Engineers and economists happily say inputs as a plural meaning the resources or signals that go in. As a verb, the past form can be input or inputted; both appear in careful writing, and entered avoids the question.
Input lookalikes that miss
Opinion is personal and can sound like a judgment, so asking for someone's opinion on a colleague's work may feel loaded. Information is facts, not views. Involvement means taking part, which is more than giving a view. Say means having power in a decision: "staff have a say" goes beyond "staff gave input." See the opinion synonyms page for that family.
Output and other opposites of input
Output is the direct antonym in both business and tech. Result, product and yield describe what comes out of a process.
- The factory doubled its output.
- The yield from the new seed was strong.
For job applications and status updates, browse the resume and work vocabulary we keep for office writers.
Frequently asked questions
Thanks for your input sounds flat. What else works?
Try thanks for your thoughts, thanks for the helpful suggestions, or thanks for weighing in. Naming one idea you used makes the thanks feel sincere.
Is feedback the same as input?
They overlap. Feedback usually responds to something that already exists, like a draft. Input is often gathered before the work starts or a choice is made.
Which input synonym sounds formal?
Recommendations, insight and guidance are the most formal. Contribution also works well in thank-you notes and reports.
Can I say inputs in an email?
In everyday office English, many readers find inputs awkward for opinions. Write thoughts or suggestions instead, and keep inputs for resources, signals or data.
What is the opposite of input?
Output is the standard opposite. Result and product also contrast with input when you describe a process.
Input as a verb: what else works?
Enter, type in and key in are the common swaps. Record fits notes and logs, while feed in fits machines and models.