tangible

When you can touch something, it's tangible: "I need tangible proof that aliens exist — I want to shake their little green hands!"

Tangible is from Latin tangere "to touch," and it simply means something that can be touched or felt, though it can be used in metaphorical senses: "tangible assets" have a value that can be precisely measured, and "tangible grief" can be clearly sensed by an onlooker. So you might not need to physically touch something for it to be tangible, but it has to be grounded in the real world of facts: "Has the teen pop star demonstrated any tangible ability to sing?"

Definitions of tangible
1

adj perceptible by the senses especially the sense of touch

“skin with a tangible roughness”
Synonyms:
touchable
concrete
capable of being perceived by the senses; not abstract or imaginary
tactile, tactual
producing a sensation of touch
Antonyms:
impalpable, intangible
incapable of being perceived by the senses especially the sense of touch
abstract
existing only in the mind; separated from embodiment
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adj capable of being perceived; especially capable of being handled or touched or felt

Synonyms:
palpable
perceptible
easily perceived by the senses or grasped by the mind
perceptible
capable of being perceived by the mind or senses
Antonyms:
impalpable
imperceptible to the senses or the mind
elusive, subtle
difficult to detect or grasp by the mind or analyze
imperceptible, unperceivable
impossible or difficult to perceive by the mind or senses
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adj capable of being treated as fact

tangible evidence”
Synonyms:
real
concrete
capable of being perceived by the senses; not abstract or imaginary

adj (of especially business assets) having physical substance and intrinsic monetary value

tangible property like real estate”
tangible assets such as machinery”
Synonyms:
real
(of property) fixed or immovable
realizable
capable of being realized
Antonyms:
intangible
(of especially business assets) not having physical substance or intrinsic productive value