girder
noun[C]
uk/ˈɡɜː.dər/us/ˈɡɝː.dɚ/along,thickpieceofmetalorconcrete, etc. thatsupportsaroof,floor,bridge, or otherlargestructure:
大梁;桁steelroofgirders钢制屋梁
![picture of girder picture of girder](https://dictionary.cambridge.org//images/thumb/girder_noun_002_15844.jpg?version=5.0.287)
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Physical supports and supporting
- abutment
- bearing
- bolster
- bookend
- bracket
- buoy
- burden
- buttress
- groan
- load-bearing
- pier
- pile
- pillar
- prop
- propsomethingup
- rafter
- scaffold
- sinew
- underpin
- weight-bearing