Investigate vs. Explore — What's the Difference?

Carry out a systematic or formal inquiry to discover and examine the facts of (an incident, allegation, etc.) so as to establish the truth

To investigate systematically; examine

To observe or inquire into in detail; examine systematically

To search into or travel in for the purpose of discovery

To make a detailed inquiry or systematic examination.

(Medicine) To examine (a body cavity or interior part) for diagnostic purposes, especially by surgery.

(transitive) To inquire into or study in order to ascertain facts or information.

To make a careful examination or search

(transitive) To examine, look into, or scrutinize in order to discover something hidden or secret.

To seek for something or after someone.

(intransitive) To conduct an inquiry or examination.

(transitive) To examine or investigate something systematically.

To follow up step by step by patient inquiry or observation; to trace or track mentally; to search into; to inquire and examine into with care and accuracy; to find out by careful inquisition; as, to investigate the causes of natural phenomena.

(transitive) To travel somewhere in search of discovery.

To pursue a course of investigation and study; to make investigation.

To examine diagnostically.

Investigate scientifically;

(transitive) To (seek) experience first hand.

Conduct an inquiry or investigation of;

(intransitive) To be engaged exploring in any of the above senses.

(intransitive) To wander without any particular aim or purpose.

(transitive) To seek sexual variety, to sow one's wild oats.

(colloquial) An exploration; a tour of a place to see what it is like.

To seek for or after; to strive to attain by search; to look wisely and carefully for.

To search through or into; to penetrate or range over for discovery; to examine thoroughly; as, to explore new countries or seas; to explore the depths of science.

Inquire into

Travel to or penetrate into;

Examine minutely

Examine (organs etc.) for diagnostic purposes