indeed
Word family
- deednounC1
Synonym discussion
Sense: adverb/1
All four words can emphasise a statement, but they differ in position and tone. 'Certainly' is the most flexible — it can start a sentence ('Certainly, I will help'), sit after the subject ('I certainly will'), or come before an adjective ('It is certainly cold'). 'Definitely' removes all doubt and fits both speech and writing ('That is definitely the right answer'). 'Truly' is more emotional and is best with feelings ('I am truly sorry'). 'Undoubtedly' is the most formal, common in academic or professional contexts ('This is undoubtedly the best method'). 'Indeed' is more restricted: it follows 'very + adjective' ('very cold indeed') or appears after 'be' in formal statements ('It is indeed a pleasure'). Compare: 'The food was certainly good' (natural), 'The food was definitely good' (emphatic), but ❌ 'The food was indeed good' (unnatural — 'indeed' needs 'very': 'The food was very good indeed').
Common collocations
Adverbs
- very much indeed
Phrases
- yes indeed
- very ... indeed
- indeed ... do / does / did / have / has
Etymology
The word 'indeed' comes from the Middle English phrase 'in dede', meaning 'in fact' or 'in action'. The noun 'dede' (modern English 'deed') originally meant 'an act' or 'something done'. By the late 14th century, the phrase had fused into a single word used to confirm the truth of a statement. The sense of adding emphasis ('very cold indeed') developed later, in the 16th century.