- National Annex (NA)
- na2o equivalent
- national annex (NA)
- national assessment directory
- nationally determined parameter (NDP)
- natural foundation
- needle
- needle scaling
- neutral axis
- neutral axis depth
- no slump concrete
- node
- nominal strength
- nominal value
- non bearing elements
- non ferrous metals
- non-destructive testing
- non-linear
- non-linear analysis
- non-structural element
- non-uniform
- nonâ€agitating equipment
- normal (weight) concrete
- normal force
- normal hardening cement
- normal stress
- notational bar
- notch
- notes
- notional
- numerical
- nut
- nut anchorage