Definition

Adverb: From the beginning; throughout the entire period of time leading up to the present.

Usage

The phrase "all along" is used to indicate that a particular fact, feeling, or situation has been true or present continuously from the start of a period until now. It often expresses a sense of something having been the case secretly or without being openly acknowledged until a later point.

Examples

• I suspected all along that he was not telling the truth.
• She had been planning the surprise party all along.
• The solution was right in front of us all along.

Advanced Usage

• "To have been (doing something) all along": This structure emphasizes a continuous, often hidden, action or state.
  • He had been working for the rival company all along.
• "Right all along": Used to state that someone's initial belief or suspicion was correct the entire time.
  • You were right all along; the project was doomed from the start.

Variants and Related Words

• From the start/beginning/outset: These are more direct synonyms, though "all along" often carries a stronger implication of an unbroken, continuous duration.
• The whole time: A more informal equivalent.

Synonyms

• From the beginning
• From the start
• The entire time
• Throughout

Related Phrases

• All this time: Very similar in meaning and often interchangeable with "all along," though it can sometimes place more emphasis on the length of the period.
  • You've known all this time and didn't tell me?

Adverb

1. all the time or over a period of time
   • She had known all along
   • the hope had been there all along