all along

all along — idiom

1. during the whole time since something began, especially when the truth only beco

1.idiomB1
Definition

during the whole time since something began, especially when the truth only becomes clear at the end

Example

Talia knew the answer all along but stayed quiet during the meeting.

positioned after the verb 'knew'

The spare key was hanging by the door all along, right in plain sight.

Common collocations
  • knew all along
  • suspected all along
  • had been (right/wrong/lying) all along
  • was there all along
Synonyms
  • from the start

    more direct; does not carry the same sense of a hidden truth being revealed

  • the whole time

    emphasises duration and can be used in more everyday contexts

  • all the while

    slightly more formal or literary; often used in storytelling

Usage Note

Almost always placed after the main verb or at the end of a clause. It carries a sense of revelation — the speaker or someone else has just discovered the truth.

Common Mistakes

I knew it for all along.
I knew it all along.
never use 'for' before 'all along'.
All along I knew the truth.
I knew the truth all along.
'all along' sounds unnatural at the start of a sentence; place it after the verb or at the end.

all along — phrasal verb

Etymology

English

Formed from 'all' and 'along' in the sense of 'through the whole length or course of something.' First recorded in English in the late 1500s, it originally described physical movement along a path, but by the 1600s it had shifted to the modern temporal meaning.

First known use

1619

1619, in the meaning defined above