Crossword Genius

Key part of Freudian analysis? Say nothing (3)

Ross

I believe the answer is:

ego

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'key part of freudian analysis?' is the definition.
The answer and definition can be both related to thinking as well as being singular nouns.
I also know that 'freudian' relates to this answer.

'say nothing' is the wordplay.
'say' becomes 'eg' (both can mean for example).
'nothing' becomes 'O' (looks like zero - 0).
'eg'+'o'='EGO'

Can you help me to learn more?

(Other definitions for ego that I've seen before include "Inflated pride" , "Conceit - the Latin "I"" , "Person's sense of self" , "Self-confidence" , "Consciousness" .)

I've seen this clue in The Times.
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