lead time
C1Formal / Business / Technical
Definition
Meaning
The period of time between the initiation and completion of a process; the preparation or production time required.
This term can also apply to the time it takes for a new employee to become fully productive, or the waiting time before a decision takes effect.
Linguistics
Semantic Notes
A count noun (e.g., 'a long lead time', 'lead times are shrinking'). It refers specifically to the gap preceding an event or availability, not the duration of the event itself.
Dialectal Variation
British vs American Usage
Differences
No significant difference in definition. Spelling follows local conventions: 'lead' pronounced /liːd/ not /lɛd/. The hyphen is standard in both, but occasional open or closed forms ('leadtime') exist in technical contexts.
Connotations
Strongly associated with manufacturing, logistics, and project management. Neutral and precise in both varieties.
Frequency
Equally common in UK and US business, academic, and technical registers.
Vocabulary
Collocations
Grammar
Valency Patterns
[Subject] has/had a [Adjective] lead time of [Number] [Unit].The lead time for [Noun Phrase] is [Adjective].We need to factor in the lead time.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None directly; it is a fixed technical compound.”
Usage
Context Usage
Business
The lead time for this component is six weeks, so we must order early.
Academic
In supply chain theory, reducing lead time is critical for just-in-time inventory models.
Everyday
The kitchen renovation has a four-month lead time before the fitters can start.
Technical
The algorithm's computational lead time must be accounted for in the control loop.
Examples
By Part of Speech
verb
British English
- They need to lead-time the procurement process more accurately.
- We haven't properly lead-timed this project phase.
American English
- We should lead-time the shipment from the overseas warehouse.
- The team failed to lead-time the regulatory approval.
adverb
British English
- This part is ordered lead-time. (rare/technical)
- N/A
American English
- We schedule lead-time. (rare/technical)
- N/A
adjective
British English
- The lead-time analysis was crucial. (as a compound modifier)
- We reviewed the lead-time assumptions.
American English
- The lead-time calculation is off. (as a compound modifier)
- Improve your lead-time estimates.
Examples
By CEFR Level
- The lead time for the book is two days.
- What is the lead time for pizza delivery?
- The factory has a lead time of three weeks for new orders.
- We asked about the lead time for the repair.
- To meet the launch date, we must shorten the product's development lead time.
- The long lead time for custom parts is causing delays in the assembly line.
- Strategic inventory buffers are maintained to compensate for volatile supplier lead times.
- The consultancy's report emphasized reducing the lead time between research and commercial application.
Learning
Memory Aids
Mnemonic
Think of a race: The 'lead' runner has a time advantage. 'Lead time' is the time you have in hand (or need) before something starts or arrives.
Conceptual Metaphor
TIME IS A RESOURCE TO BE MANAGED / TIME IS A DISTANCE TO BE TRAVERSED (e.g., shortening the lead time).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'deadline' (крайний срок). Lead time is the preparatory period *before* the deadline or delivery.
- Not directly translatable as 'время выполнения' without context, as that can imply duration of the task itself.
- Do not confuse the pronunciation with the metal 'lead' (свинец).
Common Mistakes
- Using 'lead' pronounced as /lɛd/.
- Confusing it with 'delivery time' (which can be part of the lead time).
- Treating it as an uncountable noun (e.g., 'We need more lead time' is acceptable, but 'a lead time' is standard).
Practice
Quiz
In which context is 'lead time' LEAST likely to be used accurately?
FAQ
Frequently Asked Questions
The standard form is hyphenated: 'lead-time'. However, in many business and technical texts, it appears as two words ('lead time'). The closed form 'leadtime' is less common but used in some industries.
Yes. While it originated in manufacturing, it's now used in everyday contexts for any waiting or preparation period (e.g., "the lead time for a doctor's appointment").
'Processing time' is often a subset of 'lead time'. Lead time is the total elapsed time from order to receipt, which includes processing, queueing, shipping, etc. Processing time is just the active work period.
Pronounce it like the verb 'to lead' (/liːd/), rhyming with 'seed'. It refers to the time that 'leads up to' an event. It is NOT pronounced like the metal lead (/lɛd/).