Synonyms of the word

undercurrent

• n. a current which flows under the surface.
• n. (figuratively) A tendency of feeling or opinion that is concealed rather than exposed.

current

• n. The part of a fluid that moves continuously in a certain direction.
• n. (electricity) The time rate of flow of electric charge.
• n. A tendency or a course of events.
• adj. Existing or occurring at the moment.
• adj. Generally accepted, used, practiced, or prevalent at the moment.
• adj. (obsolete) Running or moving rapidly.

meaning

• n. The symbolic value of something.
• n. The significance of a thing.
• n. (semantics) The objects or concept that a word or phrase denotes, or that which a sentence says.
• n. (obsolete) Intention.
• v. present participle of mean.
• adj. Having a (specified) intention.
• adj. Expressing some intention or significance; meaningful.

stream

• n. A small river; a large creek; a body of moving water confined by banks.
• n. A thin connected passing of a liquid through a lighter gas (e.g. air).
• n. Any steady flow or succession of material, such as water, air, radio signal or words.
• n. (sciences, umbrella term) All moving waters.
• n. (computing) A source or repository of data that can be read or written only sequentially.
• n. (figuratively) A particular path, channel, division, or way of proceeding.
• n. (Britain, education) A division of a school year by perceived ability.
• v. (intransitive) To flow in a continuous or steady manner, like a liquid.
• v. To extend; to stretch out with a wavy motion; to float in the wind.
• v. (Internet) To push continuous data (e.g. music) from a server to a client computer while it is being used…

substance

• n. Physical matter; material.
• n. The essential part of anything; the most vital part.
• n. Substantiality; solidity; firmness.
• n. Material possessions; estate; property; resources.
• n. A form of matter that has constant chemical composition and characteristic properties.
• n. Drugs (illegal narcotics).
• n. (theology) Hypostasis.

undertide

• n. (obsolete) Synonym of undern: originally terce and the morning, later (Britain dialect obsolete) noon…
• n. Synonym of undercurrent.

undertone

• n. An auditory tone of low pitch or volume.
• n. An implicit message perceived subtly alongside, but not detracting noticeably from, the explicit message…
• n. A pale colour, or one seen underneath another colour.
• v. To accompany as an undertone.
• v. To say or speak in an undertone.
• v. To present as less important, noticeable or prominent.