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Simply put, time-like or light-like is our known spacetime where causality is dictated by the $c$ speed of light upper limit inside the vacuum.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like spacetime this would resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.

Nevertheless, Dark Energy seems to have a space-like spacetime behavior.

In the context of different spacetimes and not spacetime intervals within the same spacetime. The definition could be extended as following:

Simply put, time-like or light-like is our known spacetime where causality is dictated by the speed of light. Thus for example, light-like in the vacuum where the speed of light is $c$ and time-like inside a transparent medium like glass where the speed of light is lower than $c$.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like or light-like spacetime this could even resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered within our cosmos and therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.

Nevertheless, Dark Energy seems to have a space-like spacetime behavior.

Simply put, time-like or light-like is our known spacetime where causality is dictated by the $c$ speed of light upper limit inside the vacuum.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like spacetime this would resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.

Simply put, time-like or light-like is our known spacetime where causality is dictated by the $c$ speed of light upper limit inside the vacuum.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like spacetime this would resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.

Nevertheless, Dark Energy seems to have a space-like spacetime behavior.

Simply put, time-like or light-like is our known spacetime where causality is dictated by the $c$ speed of light limit.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like spacetime this would resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.

Simply put, time-like or light-like is our known spacetime where causality is dictated by the $c$ speed of light upper limit inside the vacuum.

Space-like is a hypothetical spacetime where causality is dictated by faster than light FTL speed limit and when projected in our time-like spacetime this would resemble to "Instantaneous action at a distance" or else known by famous Einstein as "Spooky action at a distance".

However, such a spacetime domain has not yet being discovered therefore not regarded today as a possible explanation for the observed Quantum Entanglement phenomena.