ahead of
ahead of; in front of
- In front of or further forward.
- Opposite of behind.
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Examples
Spatial examples
The car ahead of us turned left.
A sign stands ahead of the bridge.
Time examples
Practice this time expression: two weeks ahead of deadline.
Another common pattern is: days ahead of plan.
Related prepositions
Key differences
ahead of in time usage mainly signals earlier than a schedule or expected time; compare it with close alternatives to avoid overlap.
Quick check questions (decision tree)
Is someone or something farther forward, earlier, or more advanced than another?
ahead of; in front of
Is someone later than schedule, less advanced, or physically farther back?
Yes -> use behind. Ahead of means earlier, more advanced, or farther forward.
Is the time a deadline that must not be missed, rather than a comparison with the schedule?
Yes -> use by. By sets the latest completion time; ahead of means earlier than expected.
Is progress being compared with a plan, schedule, competitor, or expected stage?
Yes -> use ahead of: ahead of schedule / ahead of the competition.
Common collocations
Ahead status
Lead amount
Preparation actions
Common mistakes
Avoid: We finish behind schedule.
Use: We finish ahead of schedule.
Reason: Use ahead of when the meaning is earlier than a schedule or expected time; behind signals a different relation.
Avoid: The class starts by time.
Use: The class starts ahead of time.
Reason: ahead of focuses on earlier than a schedule or expected time; by is not the best fit here.
Mini quiz
Question 1
Choose the correct preposition: ___ schedule.
Choose an answer
Question 2
Choose the correct preposition: ___ time.
Choose an answer
Question 3
Choose the best preposition in this context: two weeks ahead of deadline.
Choose an answer
Quick FAQ
What does "ahead of" mean?+
ahead of; in front of. Rule: In front of or further forward.
When should I use "ahead of"?+
Use it when this relation is true: In front of or further forward. Opposite of behind. Rule: The car ahead of us turned left.
What is the difference between "ahead of" and "behind"?+
ahead of focuses on earlier than a schedule or expected time, while behind marks a different temporal relation. Rule: behind schedule
What is the difference between "ahead of" and "by"?+
ahead of is for earlier than a schedule or expected time; by usually serves another time function. Rule: by Monday
Can "ahead of" be used for time expressions?+
Yes. It can be used in time expressions depending on context (point, period, or range).
What is a common mistake when using "ahead of"?+
A frequent beginner mistake is: Avoid: We finish behind schedule. Use: We finish ahead of schedule. Reason: Use ahead of when the meaning is earlier than a schedule or expected time; behind signals a different relation.
What are common collocations with "ahead of"?+
High-frequency examples: ahead of schedule, ahead of time, ahead of the deadline, ahead of launch, ahead of the meeting, ahead of exams
How can I remember "ahead of" quickly?+
Tie it to one clear spatial image and one short sentence. Repeat both together for 30 seconds.