To KNOW what is what

Meaning & Analysis

To understand the true nature of a situation, distinguish between important and unimportant elements, and grasp the practical realities; to be experienced, discerning, and not easily deceived.

Insights

Worldly Wisdom

The proverb signifies a deep, practical understanding of the world, often gained through experience. It implies an ability to navigate complex social, political, or business situations effectively, distinguishing it from mere academic knowledge.

Acute Discernment

It represents the capacity to make sharp judgments, separating truth from falsehood, or value from worthlessness. It is the mark of a person who can see beyond surface appearances to the core of a matter.

Insider Knowledge

The phrase often functions as a marker of belonging to an 'in-group' that shares a realistic, perhaps cynical, view of a situation. To 'know what is what' is to be privy to the unstated truths that govern an environment.

Social and Political Savvy

The proverb's frequent use in 16th and 17th-century texts underscores its value in a society where social acumen and understanding unwritten rules were critical for advancement. It signifies a practical, worldly intelligence essential for navigating complex social hierarchies.

Psychology of Experience

This phrase asserts a mastery over ambiguity and a rejection of naivety. It reflects a psychological shift from idealism to a more complex, often cynical, understanding of how the world truly operates, grounded in experience rather than innocence.

Pragmatism and Self-Interest

The cross-reference to 'knowing on which side his bread is buttered' firmly links this proverb to pragmatism and self-interest. It is not about abstract philosophical knowledge, but about the practical wisdom required for survival and personal advantage.

Rhetorical Devices

Tautology

The repetition of 'what' creates a closed loop of certainty. This tautological structure implies that the speaker's understanding is self-evident and requires no external validation, conveying absolute confidence.

Idiomatic Expression

The phrase is a classic idiom whose meaning is non-literal and culturally embedded. It concisely encapsulates the complex idea of possessing shrewd, practical knowledge.

Consonance

The crisp, percussive sounds of 'what is what' create a memorable and emphatic rhythm, making the phrase punchy and definitive.

wisdomdiscernmentsavvypragmatismexperiencereality
Analyzed with gemini-2.5-pro on August 6, 2025

Transcription

Quotations

Yet, whan he toke first his hat, He said he knew what was what.

c.1545, SKELTON, Why Come Not to Court, l. 1105: Wks., II 60

To vs that knowe what is what, those thynges onely are honest which bee honeste of theimselues.

1542, UDALL, Apoph., f. 213

Enamoured, quod you? haue ye spied out that? —Ah, Sir, mary nowe I see you know what is what.

1566-1567, UDALL, Roister D., I ii 109

Our wyts be not so base, But that we know as well as you, whats what in euery case.

1563, GOOGE, Eclog. Epit. and Sonn., p. 60

There is in some [animals] a certaine kinde of perceiuerauance and adiudging or esteeming what is what.

1567, MAPLET, Green Forest III, p. 118

One masse for a penye, you know what is what.

c.1570, MARR., Wit and Science, IV i, s. C3v

Let him be thorowly perused by any indifferent reader whom-soeuer, that can iudiciously discerne, what is what.

1593, G. HARVEY, Pierce's Super., p. 116

But sir Amorovs knowes what's what, as well.

1616, JONSON, Epic., V 190

I know whats what, I know on which side My bread is buttered.

1639, J. FORD, Lady's Trial, II, p. 357

To know what is what, to know ones interest.

1666, TOR., Prov. Phr., s.v. Pit-tori, p. 150

Cross References

Original Scan

To KNOW what is what - a scanned entry from Tilley's 1950 Dictionary of Proverbs. To KNOW what is what - a scanned entry from Tilley's 1950 Dictionary of Proverbs. (continuation)
Scan courtesy of HathiTrust Digital Library.
Used under CC BY-NC 3.0.

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Last updated: January 27, 2026