Suppose we want to ensure no readers misinterpret the written text. In that case, we have to nail each term down to a unique concept. A thumbnail definition is one approach. In that case, readers must know what a thumbnail definition is. Consider this sequence of thumbnail definitions.
- Thumbnail; that means, brief but concise.
- Consequence; that means, the result’s byproduct.
- Importance; that means, automatic consequence.
- Description; that means, a report of details.
- Meaning; that means, description of importance.
- Explanation; that means, simplifying facts.
- Definition; that means, explanation of meaning.
 A thumbnail definition identifies a named concept by using a few words to spell out the condition when the concept is at play. That’s the simplest way to detail the concept’s implication.
 Falsifiable truth is the philosophical foundation of Thumoslang. What is falsifiability? What is the truth? How should we answer these questions using thumbnail definitions? Try the following steps for size.
 First, look at the concept of conformity using the following sequence of thumbnail definitions:
- Proper; that means, socially acceptable.
- Norm; that means, the proper pattern of behavior.
- Conformity; that means, matching norms.
 Second, look at the concept of reality using the following thumbnail sequence:
- Sufficiency; that means, having enough.
- Autonomy; that means, being free from external control.
- Independence; that means, self-sufficient autonomy.
- Peer; that means, in the same frame of reference.
- Reality; that means, agreement by independent peers.
 After we understand both conformity and reality, we are ready to consider the concept of truth using the following thumbnails:
- Subjectivity; that means, in a person’s mind.
- Objectivity; that means, independent of subjectivity.
- Objective; that means, external to the mind.
- Truth; that means, conformity with objective reality.
 After we understand the objective meaning of truth, we are ready to look at the concept of falsifiability using these thumbnails:
- Dogma; that means, self-declared truth.
- Falsifiable; that means, non-dogmatic.
- Falsifiability; that means, a better truth is possible.
 Every Thumoslang thumbnail definition is falsifiable. Anyone can test to see whether it is true or false. If false, a better version should shortly replace the outdated version. That’s why each thumbnail can pass the test of time easily.
- Trust; that means, risk assessment.
 To trust this thumbnail, we have to define both risk and assessment. The following sequence explains the concept of risk.
- Suffering; that means, a bad experience.
- Danger; that means, suffering probability.
- Risk; that means, the level of danger.
 The following sequence explains the concept of assessment.
- Excellence; that means, high-level achievement.
- Quality; that means, the level of excellence.
- Assessment; that means, quality snapshot.
 In conclusion, readers can trust the validity of each Thumoslang thumbnail definition found in this book because the presented thumbnail has likely passed the test of time.