x-

Prefix

trans-

1. Extending across, through, or over.
   • trans- + national → transnational

   Synonyms:

   dia-, para-, per-

2. To or on the other side of, beyond; outside of.
   • trans- + alpine → transalpine

   Synonyms:

   para-, hyper-, ultra-, out-, extra-, preter-, ex-, ecto-

3. (physical) A compound in which two atoms or groups are situated on opposite sides of some plane of symmetry passing through the compound. (Also used without the hyphen as an adjective; see trans.)
   • transacetylase, tranexamic acid, transaldolase

   Synonyms:

   x-

4. Transgender or transsexual, or pertaining to those who are transgender or transsexual.
   • transmasculine, transfeminist, transphobia

Prefix

cross-

1. Shaped like a cross or X; crossing lines.
   • e.g. crossbody, crossbuck, cross-stitch

   Synonyms:

   stauro-, xipho-

2. Perpendicular in angle; transverse.
   • e.g. crossbedding, crossband, crossmember

   Synonyms:

   ortho-

3. Moving from one side to the other; across.
   • e.g. crossfield, cross-city. When used for a rectangular space, this movement is typically diagonal, such as in crossbelt and crosscourt.

   Synonyms:

   dia-

   1. (figuratively) Moving from one track or state to another.
      • e.g. crossfeed as the process of blending the left and right channels of a stereo recording, crossfader, cross-link
   2. On the opposite side of.
      • e.g. crosstown, cross-cousin, cross-ratio
4. Moving or acting against, opposing, contrary.
   • e.g. crossflow, cross-beat, cross-vote

   Synonyms:

   ana-, counter-

See all 14 meanings of cross-