  Electronic liquid-crystal phases are observed in numerous strongly-correlated
systems including high-temperature superconductors. However, identifying these
exotic phases and understanding their interplay with superconductivity in
topological materials remain challenging. Here we employ a cryogenic scanning
tunneling microscopy to discover a smectic (stripe) charge order (CO) and a
primary pair-density-wave (PDW) in topological monolayer 1T$^\prime$-MoTe$_2$.
The two orders are spatially modulated unidirectionally at the same wavevector,
but have a marked spatial phase difference of about 2$\pi$/5. Importantly, the
primary PDW state features a two-gap superconductivity below the transition
temperature of 6.0 K and induces another unique particle-hole-symmetric CO at
twice the PDW wavevector. Combining these results and our density functional
calculations, we reveal that the two smectic orders are primarily driven by
nesting behaviors between electron and hole pockets. Our findings establish
monolayer 1T$^\prime$-MoTe$_2$ as a topological paradigm for exploring
electronic smecticity, which intertwines with multiple preexisting
symmetry-breaking states.
