Edmund Husserl is widely recognized as the founder of phenomenology, a philosophical movement that emphasizes the importance of subjective experience and consciousness in understanding reality.

Phenomenology primarily focuses on the subjective world, seeking to understand the structures and contents of consciousness as they are experienced by individuals.

Phenomenology relies on introspection as its primary method to investigate subjective experience. Through careful self-reflection, phenomenologists aim to understand the essential structures and meanings of consciousness.

Intentionality refers to the inherent directedness of consciousness towards objects, meanings, and values. It is a fundamental characteristic of consciousness that allows us to engage with the world and make sense of our experiences.

Lebenswelt, or 'lifeworld,' refers to the world of everyday life as it is experienced by individuals. It is the taken-for-granted world of our daily interactions, routines, and meanings.

Martin Heidegger introduced the concept of 'being-in-the-world' to describe the fundamental relationship between human existence and the world. It emphasizes the interconnectedness and co-constitutive nature of our being and the world.

Epoché, or 'bracketing,' refers to the phenomenological practice of suspending or setting aside our habitual beliefs, assumptions, and judgments to gain a more direct and unprejudiced access to the phenomena themselves.

Edmund Husserl developed the concept of 'transcendental intersubjectivity' to address the question of how multiple individual consciousnesses can share a common world and communicate with each other.

Empathy, in phenomenology, refers to the ability to understand and share the emotional states and experiences of others. It is a fundamental aspect of intersubjectivity and our capacity for social connection.

Jean-Paul Sartre developed the concept of 'existential phenomenology,' which emphasizes the importance of human freedom, choice, and responsibility in shaping our existence and understanding of the world.

The phenomenological concept of 'lived body' emphasizes the body as a lived and experienced reality, rather than a mere physical object. It is through our bodies that we engage with the world, express ourselves, and communicate with others.

Maurice Merleau-Ponty developed the concept of 'the gaze' to explore the relationship between the seer and the seen, and the ways in which our gaze shapes our understanding of the world and others.

Temporality, in phenomenology, refers to the subjective experience of time, including its flow, duration, and the relationship between past, present, and future.

Hans-Georg Gadamer developed the concept of 'hermeneutic phenomenology,' which emphasizes the role of interpretation and understanding in our engagement with the world and others.