underpin

un·der·pin

U0055300 (ŭn′dər-pĭn′)tr.v. un·der·pinned, un·der·pin·ning, un·der·pins 1. To support from below, as with props, girders, or masonry.2. To give support or substance to: assumptions that underpinned their claims.

underpin

(ˌʌndəˈpɪn) vb (tr) , -pins, -pinning or -pinned1. (Building) to support from beneath, esp by a prop, while avoiding damaging or weakening the superstructure: to underpin a wall. 2. to give corroboration, strength, or support to

un•der•pin

(ˌʌn dərˈpɪn)

v.t. -pinned, -pin•ning. 1. to prop up or support from below; strengthen. 2. to replace or strengthen the foundation of. 3. to substantiate or corroborate. [1515–25]

underpin

Past participle: underpinned
Gerund: underpinning

Imperative
underpin
underpin

Present
I underpin
you underpin
he/she/it underpins
we underpin
you underpin
they underpin

Preterite
I underpinned
you underpinned
he/she/it underpinned
we underpinned
you underpinned
they underpinned

Present Continuous
I am underpinning
you are underpinning
he/she/it is underpinning
we are underpinning
you are underpinning
they are underpinning

Present Perfect
I have underpinned
you have underpinned
he/she/it has underpinned
we have underpinned
you have underpinned
they have underpinned

Past Continuous
I was underpinning
you were underpinning
he/she/it was underpinning
we were underpinning
you were underpinning
they were underpinning

Past Perfect
I had underpinned
you had underpinned
he/she/it had underpinned
we had underpinned
you had underpinned
they had underpinned

Future
I will underpin
you will underpin
he/she/it will underpin
we will underpin
you will underpin
they will underpin

Future Perfect
I will have underpinned
you will have underpinned
he/she/it will have underpinned
we will have underpinned
you will have underpinned
they will have underpinned

Future Continuous
I will be underpinning
you will be underpinning
he/she/it will be underpinning
we will be underpinning
you will be underpinning
they will be underpinning

Present Perfect Continuous
I have been underpinning
you have been underpinning
he/she/it has been underpinning
we have been underpinning
you have been underpinning
they have been underpinning

Future Perfect Continuous
I will have been underpinning
you will have been underpinning
he/she/it will have been underpinning
we will have been underpinning
you will have been underpinning
they will have been underpinning

Past Perfect Continuous
I had been underpinning
you had been underpinning
he/she/it had been underpinning
we had been underpinning
you had been underpinning
they had been underpinning

Conditional
I would underpin
you would underpin
he/she/it would underpin
we would underpin
you would underpin
they would underpin

Past Conditional
I would have underpinned
you would have underpinned
he/she/it would have underpinned
we would have underpinned
you would have underpinned
they would have underpinned

Thesaurus

Verb	1.	underpin - support from beneath hold up, support, sustain, hold - be the physical support of; carry the weight of; "The beam holds up the roof"; "He supported me with one hand while I balanced on the beam"; "What's holding that mirror?"
	2.	underpin - support with evidence or authority or make more certain or confirm; "The stories and claims were born out by the evidence"bear out, corroborate, supportcorrespond, gibe, jibe, match, tally, agree, fit, check - be compatible, similar or consistent; coincide in their characteristics; "The two stories don't agree in many details"; "The handwriting checks with the signature on the check"; "The suspect's fingerprints don't match those on the gun"

underpin

verbTo provide a basis for:base, build, establish, found, ground, predicate, rest, root.

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