Cohesion can have different meanings depending on the context. Here are some definitions:
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Linguistics: Cohesion is the grammatical and lexical linking within a text or sentence that holds a text together and gives it meaning. It is related to the broader concept of coherence. There are two main types of cohesion: grammatical cohesion, based on structural content, and lexical cohesion, based on lexical content and background knowledge).
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Physics: Cohesion is the intermolecular attractive force acting between two adjacent portions of a substance, particularly of a solid or liquid. It is this force that holds a piece of matter together. Intermolecular forces act also between two dissimilar substances in contact, a phenomenon called adhesion.
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General: Cohesion means sticking together or being in close agreement and working well together. It can describe unity among parts, and is something to be sought after. A team that has good cohesion is often a team that wins.
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Water properties: Cohesion and adhesion are important water properties that affect how water works everywhere, from plant leaves to your own body. Cohesion refers to water being attracted to water, while adhesion refers to water being attracted to other substances.
In summary, cohesion can refer to the grammatical and lexical linking within a text or sentence, the intermolecular attractive force acting between two adjacent portions of a substance, the state of sticking together or being in close agreement and working well together, or a water property that affects how water works.
