Definite article the
A thing both sides already have in mind.
the + noun (known / unique / repeated mention / superlative)
the is used when the thing is already known from context, is unique, is mentioned again, or appears with a superlative (the best, the only, etc.).
Examples
- The best way is to book the carrier early.
- We finally reached the port.
- I sent an invoice; the invoice is attached.
Best way is to book early.
The best way is to book early.
A superlative requires the definite article: the best way.
Common mistakes
- Dropping the before a superlative: Best way is… → The best way is…
- Missing the on a repeated mention of something already known: I sent an invoice; invoice is attached → the invoice is attached.