My 20 Favorite Idioms in English

A good-luck wish, especially before a performance; it is not meant literally.

Tone and use: Traditional theater expression, now also used more broadly before an event. Wish a performer or someone facing a challenge good luck.

May not fit: Do not use it with someone who might interpret it literally or when discussing an actual injury.

Something that is very easy to do.

Tone and use: Common informal expression. Describe a task that required little effort.

May not fit: In formal writing, use easy or straightforward.

Think about possible consequences before you act; this is a familiar proverb.

Tone and use: Familiar cautionary saying. Advise someone to consider the risks before making a decision.

May not fit: It can sound overly cautious when a quick, low-risk decision is needed.

Feeling mildly ill or generally unwell.

Tone and use: Common, informal, and somewhat understated. Tell someone you are not feeling well without listing symptoms.

May not fit: For serious symptoms or a medical conversation, describe what is wrong directly.

Said when someone appears just after you were talking about them.

Tone and use: Playful and familiar; usually not meant as a serious reference to the devil. React when a person being discussed suddenly arrives.

May not fit: It can sound awkward if the person does not know you were talking about them.

Wait, slow down, or do not rush into a decision.

Tone and use: Informal and sometimes playful; can sound impatient if said sharply. Ask someone to pause before acting or getting ahead of the plan.

May not fit: For a sensitive situation, use “let’s take a moment” to sound gentler.

Very rarely.

Tone and use: Common and conversational; not a precise frequency. Describe something that happens infrequently.

May not fit: Use an exact schedule or frequency when precision matters.

A very large amount of money; used when something is extremely expensive.

Tone and use: Informal and often mildly exaggerated. Complain casually about a high price.

May not fit: For a real budget decision or formal discussion, state the amount.

Do or say something that helps people feel less awkward when they first meet.

Tone and use: Common in social and professional settings. Start a conversation or make a new group feel more comfortable.

May not fit: Do not force a joke or activity if people seem uncomfortable.

Talking about a worry, secret, or problem that has been bothering you.

Tone and use: Informal and emotionally candid. Tell someone you need to share something that has been weighing on you.

May not fit: Check that the other person has time and is ready to listen.

Stop working on something for now, often until the next day.

Tone and use: Common and casual at work or during an activity. Suggest that the group has done enough for today.

May not fit: If the task is unfinished and urgent, clarify what still needs to happen.

Calm down and regain control of your emotions.

Tone and use: Can be supportive or impatient depending on tone and relationship. Encourage someone to steady themselves during a stressful moment.

May not fit: It can sound dismissive to someone who is distressed; try “take a breath” or offer support.

Reveal information that was meant to stay secret.

Tone and use: Informal and often playful. Talk about accidentally or deliberately revealing a surprise or secret.

May not fit: For confidential information, use reveal or disclose and consider the seriousness.

Make more effort than people expect or more than is required.

Tone and use: Positive and common in work, service, and personal contexts. Praise someone who has made a special effort to help.

May not fit: Do not imply that unpaid or excessive effort should always be expected.

Find someone in the act of doing something wrong.

Tone and use: Informal and vivid; often used for a clear, observable act. Describe catching someone while the action is happening.

May not fit: Do not use it for an unproven accusation or a past event you did not witness.

A way to strongly agree with what someone just said, not a request to repeat it.

Tone and use: Informal, emphatic agreement. Show that you feel exactly the same way about a comment.

May not fit: If the other person may not know the expression, answer directly to prevent confusion.

Do something carelessly or skip proper steps to save time or money.

Tone and use: Usually critical; implies quality or safety may suffer. Describe a shortcut that compromises the result.

May not fit: For efficient but acceptable simplification, say streamline instead.

Having the same understanding, information, or plan as other people.

Tone and use: Common in workplaces, planning, and everyday coordination. Check that everyone agrees about what will happen.

May not fit: Ask a specific question if you need to confirm an exact detail.

Relax, calm down, or avoid working too hard.

Tone and use: Friendly in some contexts but can sound dismissive when someone is upset. Encourage a friend to relax or slow down.

May not fit: When someone is distressed, acknowledge their concern before telling them to calm down.

Try something, especially when you are not sure whether you will like it or succeed.

Tone and use: Casual and encouraging. Suggest trying a new activity, food, or approach.

May not fit: In a formal proposal, use try or attempt.

Keep going and do not give up during a difficult situation.

Tone and use: Warm encouragement, often used during a temporary hardship. Support someone who is facing a challenge.

May not fit: Pair it with specific help when the person needs more than encouragement.

Have a friendly relationship and interact without frequent conflict.

Tone and use: Neutral and common when describing relationships. Talk about how well two people or groups interact.

May not fit: For a specific disagreement, describe the issue rather than labeling the whole relationship.

Extremely happy or excited; the standard written form is “on cloud nine.”

Tone and use: Positive, familiar, and slightly expressive. Describe a strong feeling of happiness after good news or success.

May not fit: For a small positive reaction, say pleased or happy instead.

Clearly and unquestionably, especially when naming the best option.

Tone and use: Informal and confident. Say that one choice is easily the best among alternatives.

May not fit: If people could reasonably disagree, soften it with “for me” or explain your criteria.